Clements, Ian |
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Greetings and a Happy New Year to all list members. I would like to extend the following invitation to join our Free webinar on "Advances in Super-Resolution Microscopy" on January 19, 2011. The webinar will be hosted at 3 times, just register for the event that is most convenient. 6 a.m. PST 11 a.m. PST 6 p.m. PST Register at http://apiwebinars.webex.com During this informative webinar, we will cover: * Methods for overcoming diffraction limited microscopy * New super-resolution capabilities on the DeltaVision OMX platform * Making live cell super-resolution imaging a reality For more information, please e-mail us at [hidden email]. Ian Clements Product Manager - DeltaVision OMX Systems ________________________________ This email message, together with any attachments, is for the sole use of the intended recipient(s) and is the confidential information of Applied Precision Inc. If you are not the intended recipient, your review, use, disclosure, copying or dissemination of this email message or its attachments, or the information contained therein, is strictly prohibited. If you are not the intended recipient or if you think this email was sent to you in error, please notify the sender by reply email and delete this message and its attachments, as well as all copies, from your system. |
Jeremy Adler-3 |
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** We are considering buying a new confocal for examining fixed and potentially thick biological specimens. Given the need to have to an RI match between the specimen, mounting medium and immersion medium, I want to ask about the pros and cons of glycerol objectives. Oil objectives appear to have no obvious advantages, the higher RI will only apply if specimens are mounted in a medium with a RI close to that of oil - while most media seem to have lower RIs. Why would anyone choose an oil objective and which mounting media work for thick specimens ? A possible disadvantage of glycerol objectives is that glycerol is hygroscopic which could change its RI. Are there any RI equivalent immersion media ?. So the pros and cons of oil or glycerol objectives. Jeremy Adler Genetics & Pathology Rudbeckslaboratoriet Daghammersköljdsväg 20 751 85 Uppsala Sweden 0046 (0)18 471 4607 |
Adrian Smith-6 |
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** On related note our Olympus rep just pointed me to their new silicone oil objectives... http://www.microscopy-analysis.com/news/olympus-introduces-uplsapo-30x-and-60x-silicone-oil-immersion-objectives http://microscope.olympus-global.com/en/ga/product/fv1000/sf03.cfm http://microscope.olympus-global.com/uis2/en/uplsapo30xs/ http://microscope.olympus-global.com/uis2/en/uplsapo60xs/ Anyone tried one? Regards, Adrian On 10/01/2011, at 7:39 PM, Jeremy Adler wrote: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > We are considering buying a new confocal for examining fixed and potentially thick biological specimens. > Given the need to have to an RI match between the specimen, mounting medium and immersion medium, I want to ask about the pros and cons of glycerol objectives. > > Oil objectives appear to have no obvious advantages, the higher RI will only apply if specimens are mounted in a medium with a RI close to that of oil - while most media seem to have lower RIs. Why would anyone choose an oil objective and which mounting media work for thick specimens ? > > A possible disadvantage of glycerol objectives is that glycerol is hygroscopic which could change its RI. Are there any RI equivalent immersion media ?. > > So the pros and cons of oil or glycerol objectives. > > > > > > > > Jeremy Adler > Genetics & Pathology > Rudbeckslaboratoriet > Daghammersköljdsväg 20 > 751 85 Uppsala > Sweden > > 0046 (0)18 471 4607 ______________________________________________ Dr Adrian Smith Manager, Cytometry & Imaging Facilities Centenary Institute http://www.centenary.org.au Locked Bag No.6 Newtown, NSW 2042 AUSTRALIA. Ph: 61-2-9565-6189 Fax: 61-2-9565-6101 ______________________________________________ Dr Adrian Smith Manager, Cytometry & Imaging Facilities Centenary Institute http://www.centenary.org.au Locked Bag No.6 Newtown, NSW 2042 AUSTRALIA. Ph: 61-2-9565-6189 Fax: 61-2-9565-6101 |
Craig Brideau |
In reply to this post by Jeremy Adler-3
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** We have a Nikon 20x multi-medium lens that works quite well. It works with air/water/glycerol or oil. We've even used it for decent 2-photon pictures. It has a collar for adjusting to different mediums, and fine adjustment of the collar can improve the image a bit by correcting for some aberration. One side bonus is that since it is rated for oil or water, it doesn't matter if it accidentally gets either on it. We primarily use it in either water or oil regimes. We have used it as a water immersion lens to image samples without coverslips. For samples with coverslips we use oil. Oil does allow for a higher NA, if your sample is right on the surface of the coverslip. Again, fine adjustment of the correction collar helps here. Craig On Mon, Jan 10, 2011 at 1:39 AM, Jeremy Adler <[hidden email]>wrote: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > We are considering buying a new confocal for examining fixed and > potentially thick biological specimens. > Given the need to have to an RI match between the specimen, mounting medium > and immersion medium, I want to ask about the pros and cons of glycerol > objectives. > > Oil objectives appear to have no obvious advantages, the higher RI will > only apply if specimens are mounted in a medium with a RI close to that of > oil - while most media seem to have lower RIs. Why would anyone choose an > oil objective and which mounting media work for thick specimens ? > > A possible disadvantage of glycerol objectives is that glycerol is > hygroscopic which could change its RI. Are there any RI equivalent immersion > media ?. > > So the pros and cons of oil or glycerol objectives. > > > > > > > > Jeremy Adler > Genetics & Pathology > Rudbeckslaboratoriet > Daghammersköljdsväg 20 > 751 85 Uppsala > Sweden > > 0046 (0)18 471 4607 > |
Lloyd Donaldson |
In reply to this post by Jeremy Adler-3
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Jeremy We have a Leica 63x glycerol objective with adjusting ring which gives very noticeable improvement over 63x oil which we also have. We also have a 20x multi immersion objective that can use glycerol. We have both oil and glycerol objectives, although we prefer glycerol as a mounting medium it is incompatible with some of our samples because of induced swelling so we have to mount in oil for those samples. We also have the oil lens because it is UV compatible - we have a 355 nm laser. Dr Lloyd Donaldson Senior Scientist, Project Leader - Microscopy/Wood Identification Scion - Next Generation Biomaterials Private Bag 3020, Rotorua New Zealand 3010 Ph: 64 7 343 5581 -----Original Message----- From: Confocal Microscopy List [mailto:[hidden email]] On Behalf Of Jeremy Adler Sent: Monday, 10 January 2011 9:39 p.m. To: [hidden email] Subject: Glycerol Objectives - experience with ***** To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** We are considering buying a new confocal for examining fixed and potentially thick biological specimens. Given the need to have to an RI match between the specimen, mounting medium and immersion medium, I want to ask about the pros and cons of glycerol objectives. Oil objectives appear to have no obvious advantages, the higher RI will only apply if specimens are mounted in a medium with a RI close to that of oil - while most media seem to have lower RIs. Why would anyone choose an oil objective and which mounting media work for thick specimens ? A possible disadvantage of glycerol objectives is that glycerol is hygroscopic which could change its RI. Are there any RI equivalent immersion media ?. So the pros and cons of oil or glycerol objectives. Jeremy Adler Genetics & Pathology Rudbeckslaboratoriet Daghammersköljdsväg 20 751 85 Uppsala Sweden 0046 (0)18 471 4607 Disclaimer: This e-mail and any attachments may contain information which is confidential or subject to copyright. If you receive this e-mail in error, please delete it. Scion does not accept responsibility for anything in this e-mail which is not provided in the course of Scion's usual business or for any computer virus, data corruption, interference or delay arising from this e-mail. |
Ignatius, Mike-2 |
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** I was told at SFN that one of the reasons for silicon immersion oil, is that glycerol changes its RI during prolonged imaging sessions. Anyone know who much or how soon? If it is significant, it is a good argument for silicon corrected lens - especially if doing long 3D reconstructions of thick tissue. Mike Ignatius, Molecular Probes/LifeTechnology No commercial interest. -----Original Message----- From: Confocal Microscopy List [mailto:[hidden email]] On Behalf Of Lloyd Donaldson Sent: Monday, January 10, 2011 11:22 AM To: [hidden email] Subject: Re: Glycerol Objectives - experience with ***** To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Jeremy We have a Leica 63x glycerol objective with adjusting ring which gives very noticeable improvement over 63x oil which we also have. We also have a 20x multi immersion objective that can use glycerol. We have both oil and glycerol objectives, although we prefer glycerol as a mounting medium it is incompatible with some of our samples because of induced swelling so we have to mount in oil for those samples. We also have the oil lens because it is UV compatible - we have a 355 nm laser. Dr Lloyd Donaldson Senior Scientist, Project Leader - Microscopy/Wood Identification Scion - Next Generation Biomaterials Private Bag 3020, Rotorua New Zealand 3010 Ph: 64 7 343 5581 -----Original Message----- From: Confocal Microscopy List [mailto:[hidden email]] On Behalf Of Jeremy Adler Sent: Monday, 10 January 2011 9:39 p.m. To: [hidden email] Subject: Glycerol Objectives - experience with ***** To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** We are considering buying a new confocal for examining fixed and potentially thick biological specimens. Given the need to have to an RI match between the specimen, mounting medium and immersion medium, I want to ask about the pros and cons of glycerol objectives. Oil objectives appear to have no obvious advantages, the higher RI will only apply if specimens are mounted in a medium with a RI close to that of oil - while most media seem to have lower RIs. Why would anyone choose an oil objective and which mounting media work for thick specimens ? A possible disadvantage of glycerol objectives is that glycerol is hygroscopic which could change its RI. Are there any RI equivalent immersion media ?. So the pros and cons of oil or glycerol objectives. Jeremy Adler Genetics & Pathology Rudbeckslaboratoriet Daghammersköljdsväg 20 751 85 Uppsala Sweden 0046 (0)18 471 4607 Disclaimer: This e-mail and any attachments may contain information which is confidential or subject to copyright. If you receive this e-mail in error, please delete it. Scion does not accept responsibility for anything in this e-mail which is not provided in the course of Scion's usual business or for any computer virus, data corruption, interference or delay arising from this e-mail. |
Rosemary.White |
In reply to this post by Lloyd Donaldson
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Dear Lloyd, Does the 63x glycerol objective provide substantial improvements over the 63x water (with correction collar) for live tissues? We have one of the "blue" Leica 63x objectives, corrected for the blue-UV end of the spectrum (though only have 405 laser), which is great except when you want to image both red and blue emission.... thanks, Rosemary White Dr Rosemary White CSIRO Plant Industry GPO Box 1600 Canberra, ACT 2601 Australia T 61 2 6246 5475 F 61 2 6246 5334 E [hidden email] On 11/01/11 6:21 AM, "Lloyd Donaldson" <[hidden email]> wrote: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > Jeremy > > We have a Leica 63x glycerol objective with adjusting ring which gives very > noticeable improvement over 63x oil which we also have. We also have a 20x > multi immersion objective that can use glycerol. We have both oil and glycerol > objectives, although we prefer glycerol as a mounting medium it is > incompatible with some of our samples because of induced swelling so we have > to mount in oil for those samples. We also have the oil lens because it is UV > compatible - we have a 355 nm laser. > > > Dr Lloyd Donaldson > > Senior Scientist, Project Leader - Microscopy/Wood Identification > Scion - Next Generation Biomaterials > Private Bag 3020, Rotorua > New Zealand 3010 > > Ph: 64 7 343 5581 > > > > -----Original Message----- > From: Confocal Microscopy List [mailto:[hidden email]] On > Behalf Of Jeremy Adler > Sent: Monday, 10 January 2011 9:39 p.m. > To: [hidden email] > Subject: Glycerol Objectives - experience with > > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > We are considering buying a new confocal for examining fixed and > potentially thick biological specimens. > Given the need to have to an RI match between the specimen, mounting > medium and immersion medium, I want to ask about the pros and cons of > glycerol objectives. > > Oil objectives appear to have no obvious advantages, the higher RI > will only apply if specimens are mounted in a medium with a RI close > to that of oil - while most media seem to have lower RIs. Why would > anyone choose an oil objective and which mounting media work for > thick specimens ? > > A possible disadvantage of glycerol objectives is that glycerol is > hygroscopic which could change its RI. Are there any RI equivalent > immersion media ?. > > So the pros and cons of oil or glycerol objectives. > > > > > > > > Jeremy Adler > Genetics & Pathology > Rudbeckslaboratoriet > Daghammersköljdsväg 20 > 751 85 Uppsala > Sweden > > 0046 (0)18 471 4607 > > Disclaimer: This e-mail and any attachments may contain information which is > confidential or subject to copyright. If you receive this e-mail in error, > please delete it. > Scion does not accept responsibility for anything in this e-mail which is not > provided in the course of Scion's usual business or for any computer virus, > data corruption, interference or delay arising from this e-mail. |
Lloyd Donaldson |
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Hi Rosemary We don't really work with live tissue but we do have a Leica 63x water lens on our old TCS NT. I never really found it particularly useful. I haven't tried a direct comparison on our new SP5 II but I would expect the glycerol lens to be much better unless you have to be in water. If your blue 63x is the same as ours I have imaged blue green and red both sequentially and simultaneously without any obvious problem. We image lignin at blue and or green emission and combine with alexa568 or alexa647 for immuno work. There is sometimes some quenching going on so we separate the lignin and alexa as far as we can. We have to mount in oil for this work which is why I am using the blue lens. Lloyd -----Original Message----- From: Confocal Microscopy List [mailto:[hidden email]] On Behalf Of Rosemary White Sent: Tuesday, 11 January 2011 10:48 a.m. To: [hidden email] Subject: Re: Glycerol Objectives - experience with ***** To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Dear Lloyd, Does the 63x glycerol objective provide substantial improvements over the 63x water (with correction collar) for live tissues? We have one of the "blue" Leica 63x objectives, corrected for the blue-UV end of the spectrum (though only have 405 laser), which is great except when you want to image both red and blue emission.... thanks, Rosemary White Dr Rosemary White CSIRO Plant Industry GPO Box 1600 Canberra, ACT 2601 Australia T 61 2 6246 5475 F 61 2 6246 5334 E [hidden email] On 11/01/11 6:21 AM, "Lloyd Donaldson" <[hidden email]> wrote: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > Jeremy > > We have a Leica 63x glycerol objective with adjusting ring which gives very > noticeable improvement over 63x oil which we also have. We also have a 20x > multi immersion objective that can use glycerol. We have both oil and glycerol > objectives, although we prefer glycerol as a mounting medium it is > incompatible with some of our samples because of induced swelling so we have > to mount in oil for those samples. We also have the oil lens because it is UV > compatible - we have a 355 nm laser. > > > Dr Lloyd Donaldson > > Senior Scientist, Project Leader - Microscopy/Wood Identification > Scion - Next Generation Biomaterials > Private Bag 3020, Rotorua > New Zealand 3010 > > Ph: 64 7 343 5581 > > > > -----Original Message----- > From: Confocal Microscopy List [mailto:[hidden email]] On > Behalf Of Jeremy Adler > Sent: Monday, 10 January 2011 9:39 p.m. > To: [hidden email] > Subject: Glycerol Objectives - experience with > > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > We are considering buying a new confocal for examining fixed and > potentially thick biological specimens. > Given the need to have to an RI match between the specimen, mounting > medium and immersion medium, I want to ask about the pros and cons of > glycerol objectives. > > Oil objectives appear to have no obvious advantages, the higher RI > will only apply if specimens are mounted in a medium with a RI close > to that of oil - while most media seem to have lower RIs. Why would > anyone choose an oil objective and which mounting media work for > thick specimens ? > > A possible disadvantage of glycerol objectives is that glycerol is > hygroscopic which could change its RI. Are there any RI equivalent > immersion media ?. > > So the pros and cons of oil or glycerol objectives. > > > > > > > > Jeremy Adler > Genetics & Pathology > Rudbeckslaboratoriet > Daghammersköljdsväg 20 > 751 85 Uppsala > Sweden > > 0046 (0)18 471 4607 > > Disclaimer: This e-mail and any attachments may contain information which is > confidential or subject to copyright. If you receive this e-mail in error, > please delete it. > Scion does not accept responsibility for anything in this e-mail which is not > provided in the course of Scion's usual business or for any computer virus, > data corruption, interference or delay arising from this e-mail. Disclaimer: This e-mail and any attachments may contain information which is confidential or subject to copyright. If you receive this e-mail in error, please delete it. Scion does not accept responsibility for anything in this e-mail which is not provided in the course of Scion's usual business or for any computer virus, data corruption, interference or delay arising from this e-mail. |
Rosemary.White |
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Hi Lloyd, I've found that the red and blue emission aren't quite lined up vertically, at least with our "blue" 63x objective, so have to cut the top one or two slices off a blue vertical series (depending on depth of slice), and the bottom slices off a red series and reassemble to get the emissions aligned - i.e. from the same depth in the tissue. The objectives do vary a bit, perhaps ours isn't as well corrected as some. cheers, Rosemary On 11/01/11 9:16 AM, "Lloyd Donaldson" <[hidden email]> wrote: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > Hi Rosemary > > We don't really work with live tissue but we do have a Leica 63x water lens on > our old TCS NT. I never really found it particularly useful. I haven't tried a > direct comparison on our new SP5 II but I would expect the glycerol lens to be > much better unless you have to be in water. > If your blue 63x is the same as ours I have imaged blue green and red both > sequentially and simultaneously without any obvious problem. We image lignin > at blue and or green emission and combine with alexa568 or alexa647 for immuno > work. There is sometimes some quenching going on so we separate the lignin and > alexa as far as we can. We have to mount in oil for this work which is why I > am using the blue lens. > > Lloyd > > -----Original Message----- > From: Confocal Microscopy List [mailto:[hidden email]] On > Behalf Of Rosemary White > Sent: Tuesday, 11 January 2011 10:48 a.m. > To: [hidden email] > Subject: Re: Glycerol Objectives - experience with > > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > Dear Lloyd, > > Does the 63x glycerol objective provide substantial improvements over the > 63x water (with correction collar) for live tissues? We have one of the > "blue" Leica 63x objectives, corrected for the blue-UV end of the spectrum > (though only have 405 laser), which is great except when you want to image > both red and blue emission.... > > thanks, > Rosemary White > > > Dr Rosemary White > CSIRO Plant Industry > GPO Box 1600 > Canberra, ACT 2601 > Australia > > T 61 2 6246 5475 > F 61 2 6246 5334 > E [hidden email] > > > > On 11/01/11 6:21 AM, "Lloyd Donaldson" <[hidden email]> > wrote: > >> ***** >> To join, leave or search the confocal microscopy listserv, go to: >> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy >> ***** >> >> Jeremy >> >> We have a Leica 63x glycerol objective with adjusting ring which gives very >> noticeable improvement over 63x oil which we also have. We also have a 20x >> multi immersion objective that can use glycerol. We have both oil and >> glycerol >> objectives, although we prefer glycerol as a mounting medium it is >> incompatible with some of our samples because of induced swelling so we have >> to mount in oil for those samples. We also have the oil lens because it is UV >> compatible - we have a 355 nm laser. >> >> >> Dr Lloyd Donaldson >> >> Senior Scientist, Project Leader - Microscopy/Wood Identification >> Scion - Next Generation Biomaterials >> Private Bag 3020, Rotorua >> New Zealand 3010 >> >> Ph: 64 7 343 5581 >> >> >> >> -----Original Message----- >> From: Confocal Microscopy List [mailto:[hidden email]] On >> Behalf Of Jeremy Adler >> Sent: Monday, 10 January 2011 9:39 p.m. >> To: [hidden email] >> Subject: Glycerol Objectives - experience with >> >> ***** >> To join, leave or search the confocal microscopy listserv, go to: >> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy >> ***** >> >> We are considering buying a new confocal for examining fixed and >> potentially thick biological specimens. >> Given the need to have to an RI match between the specimen, mounting >> medium and immersion medium, I want to ask about the pros and cons of >> glycerol objectives. >> >> Oil objectives appear to have no obvious advantages, the higher RI >> will only apply if specimens are mounted in a medium with a RI close >> to that of oil - while most media seem to have lower RIs. Why would >> anyone choose an oil objective and which mounting media work for >> thick specimens ? >> >> A possible disadvantage of glycerol objectives is that glycerol is >> hygroscopic which could change its RI. Are there any RI equivalent >> immersion media ?. >> >> So the pros and cons of oil or glycerol objectives. >> >> >> >> >> >> >> >> Jeremy Adler >> Genetics & Pathology >> Rudbeckslaboratoriet >> Daghammersköljdsväg 20 >> 751 85 Uppsala >> Sweden >> >> 0046 (0)18 471 4607 >> >> Disclaimer: This e-mail and any attachments may contain information which is >> confidential or subject to copyright. If you receive this e-mail in error, >> please delete it. >> Scion does not accept responsibility for anything in this e-mail which is not >> provided in the course of Scion's usual business or for any computer virus, >> data corruption, interference or delay arising from this e-mail. > > Disclaimer: This e-mail and any attachments may contain information which is > confidential or subject to copyright. If you receive this e-mail in error, > please delete it. > Scion does not accept responsibility for anything in this e-mail which is not > provided in the course of Scion's usual business or for any computer virus, > data corruption, interference or delay arising from this e-mail. |
Craig Brideau |
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** That's odd. Doesn't Zeiss have a blue correction optic in the microscope to keep things chromatically aligned? Craig On Mon, Jan 10, 2011 at 3:32 PM, Rosemary White <[hidden email]>wrote: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > Hi Lloyd, > > I've found that the red and blue emission aren't quite lined up vertically, > at least with our "blue" 63x objective, so have to cut the top one or two > slices off a blue vertical series (depending on depth of slice), and the > bottom slices off a red series and reassemble to get the emissions aligned > - > i.e. from the same depth in the tissue. The objectives do vary a bit, > perhaps ours isn't as well corrected as some. > > cheers, > Rosemary > > > On 11/01/11 9:16 AM, "Lloyd Donaldson" <[hidden email]> > wrote: > > > ***** > > To join, leave or search the confocal microscopy listserv, go to: > > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > > ***** > > > > Hi Rosemary > > > > We don't really work with live tissue but we do have a Leica 63x water > lens on > > our old TCS NT. I never really found it particularly useful. I haven't > tried a > > direct comparison on our new SP5 II but I would expect the glycerol lens > to be > > much better unless you have to be in water. > > If your blue 63x is the same as ours I have imaged blue green and red > both > > sequentially and simultaneously without any obvious problem. We image > lignin > > at blue and or green emission and combine with alexa568 or alexa647 for > immuno > > work. There is sometimes some quenching going on so we separate the > lignin and > > alexa as far as we can. We have to mount in oil for this work which is > why I > > am using the blue lens. > > > > Lloyd > > > > -----Original Message----- > > From: Confocal Microscopy List [mailto:[hidden email]] > On > > Behalf Of Rosemary White > > Sent: Tuesday, 11 January 2011 10:48 a.m. > > To: [hidden email] > > Subject: Re: Glycerol Objectives - experience with > > > > ***** > > To join, leave or search the confocal microscopy listserv, go to: > > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > > ***** > > > > Dear Lloyd, > > > > Does the 63x glycerol objective provide substantial improvements over the > > 63x water (with correction collar) for live tissues? We have one of the > > "blue" Leica 63x objectives, corrected for the blue-UV end of the > spectrum > > (though only have 405 laser), which is great except when you want to > image > > both red and blue emission.... > > > > thanks, > > Rosemary White > > > > > > Dr Rosemary White > > CSIRO Plant Industry > > GPO Box 1600 > > Canberra, ACT 2601 > > Australia > > > > T 61 2 6246 5475 > > F 61 2 6246 5334 > > E [hidden email] > > > > > > > > On 11/01/11 6:21 AM, "Lloyd Donaldson" < > [hidden email]> > > wrote: > > > >> ***** > >> To join, leave or search the confocal microscopy listserv, go to: > >> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > >> ***** > >> > >> Jeremy > >> > >> We have a Leica 63x glycerol objective with adjusting ring which gives > very > >> noticeable improvement over 63x oil which we also have. We also have a > 20x > >> multi immersion objective that can use glycerol. We have both oil and > >> glycerol > >> objectives, although we prefer glycerol as a mounting medium it is > >> incompatible with some of our samples because of induced swelling so we > have > >> to mount in oil for those samples. We also have the oil lens because it > is UV > >> compatible - we have a 355 nm laser. > >> > >> > >> Dr Lloyd Donaldson > >> > >> Senior Scientist, Project Leader - Microscopy/Wood Identification > >> Scion - Next Generation Biomaterials > >> Private Bag 3020, Rotorua > >> New Zealand 3010 > >> > >> Ph: 64 7 343 5581 > >> > >> > >> > >> -----Original Message----- > >> From: Confocal Microscopy List [mailto:[hidden email]] > On > >> Behalf Of Jeremy Adler > >> Sent: Monday, 10 January 2011 9:39 p.m. > >> To: [hidden email] > >> Subject: Glycerol Objectives - experience with > >> > >> ***** > >> To join, leave or search the confocal microscopy listserv, go to: > >> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > >> ***** > >> > >> We are considering buying a new confocal for examining fixed and > >> potentially thick biological specimens. > >> Given the need to have to an RI match between the specimen, mounting > >> medium and immersion medium, I want to ask about the pros and cons of > >> glycerol objectives. > >> > >> Oil objectives appear to have no obvious advantages, the higher RI > >> will only apply if specimens are mounted in a medium with a RI close > >> to that of oil - while most media seem to have lower RIs. Why would > >> anyone choose an oil objective and which mounting media work for > >> thick specimens ? > >> > >> A possible disadvantage of glycerol objectives is that glycerol is > >> hygroscopic which could change its RI. Are there any RI equivalent > >> immersion media ?. > >> > >> So the pros and cons of oil or glycerol objectives. > >> > >> > >> > >> > >> > >> > >> > >> Jeremy Adler > >> Genetics & Pathology > >> Rudbeckslaboratoriet > >> Daghammersköljdsväg 20 > >> 751 85 Uppsala > >> Sweden > >> > >> 0046 (0)18 471 4607 > >> > >> Disclaimer: This e-mail and any attachments may contain information > which is > >> confidential or subject to copyright. If you receive this e-mail in > error, > >> please delete it. > >> Scion does not accept responsibility for anything in this e-mail which > is not > >> provided in the course of Scion's usual business or for any computer > virus, > >> data corruption, interference or delay arising from this e-mail. > > > > Disclaimer: This e-mail and any attachments may contain information which > is > > confidential or subject to copyright. If you receive this e-mail in > error, > > please delete it. > > Scion does not accept responsibility for anything in this e-mail which is > not > > provided in the course of Scion's usual business or for any computer > virus, > > data corruption, interference or delay arising from this e-mail. > |
In reply to this post by Rosemary.White
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** A few years ago we evaluated the Leica 63X glycerol objective side-by-side with the water immersion one on the AOBS SP2 for work with live tissue and found the glycerol one to be enough of an improvement to purchase it. -Michael C. -----Original Message----- From: Confocal Microscopy List [mailto:[hidden email]] On Behalf Of Rosemary White Sent: Monday, January 10, 2011 4:48 PM To: [hidden email] Subject: Re: Glycerol Objectives - experience with ***** To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Dear Lloyd, Does the 63x glycerol objective provide substantial improvements over the 63x water (with correction collar) for live tissues? We have one of the "blue" Leica 63x objectives, corrected for the blue-UV end of the spectrum (though only have 405 laser), which is great except when you want to image both red and blue emission.... thanks, Rosemary White Dr Rosemary White CSIRO Plant Industry GPO Box 1600 Canberra, ACT 2601 Australia T 61 2 6246 5475 F 61 2 6246 5334 E [hidden email] On 11/01/11 6:21 AM, "Lloyd Donaldson" <[hidden email]> wrote: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > Jeremy > > We have a Leica 63x glycerol objective with adjusting ring which gives very > noticeable improvement over 63x oil which we also have. We also have a 20x > multi immersion objective that can use glycerol. We have both oil and glycerol > objectives, although we prefer glycerol as a mounting medium it is > incompatible with some of our samples because of induced swelling so we have > to mount in oil for those samples. We also have the oil lens because it is UV > compatible - we have a 355 nm laser. > > > Dr Lloyd Donaldson > > Senior Scientist, Project Leader - Microscopy/Wood Identification > Scion - Next Generation Biomaterials > Private Bag 3020, Rotorua > New Zealand 3010 > > Ph: 64 7 343 5581 > > > > -----Original Message----- > From: Confocal Microscopy List [mailto:[hidden email]] On > Behalf Of Jeremy Adler > Sent: Monday, 10 January 2011 9:39 p.m. > To: [hidden email] > Subject: Glycerol Objectives - experience with > > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > We are considering buying a new confocal for examining fixed and > potentially thick biological specimens. > Given the need to have to an RI match between the specimen, mounting > medium and immersion medium, I want to ask about the pros and cons of > glycerol objectives. > > Oil objectives appear to have no obvious advantages, the higher RI > will only apply if specimens are mounted in a medium with a RI close > to that of oil - while most media seem to have lower RIs. Why would > anyone choose an oil objective and which mounting media work for > thick specimens ? > > A possible disadvantage of glycerol objectives is that glycerol is > hygroscopic which could change its RI. Are there any RI equivalent > immersion media ?. > > So the pros and cons of oil or glycerol objectives. > > > > > > > > Jeremy Adler > Genetics & Pathology > Rudbeckslaboratoriet > Daghammersköljdsväg 20 > 751 85 Uppsala > Sweden > > 0046 (0)18 471 4607 > > Disclaimer: This e-mail and any attachments may contain information which is > confidential or subject to copyright. If you receive this e-mail in error, > please delete it. > Scion does not accept responsibility for anything in this e-mail which is not > provided in the course of Scion's usual business or for any computer virus, > data corruption, interference or delay arising from this e-mail. ------------------------------------------------------------ This email message, including any attachments, is for the sole use of the intended recipient(s) and may contain information that is proprietary, confidential, and exempt from disclosure under applicable law. Any unauthorized review, use, disclosure, or distribution is prohibited. If you have received this email in error please notify the sender by return email and delete the original message. Please note, the recipient should check this email and any attachments for the presence of viruses. The organization accepts no liability for any damage caused by any virus transmitted by this email. ================================= |
Lloyd Donaldson |
In reply to this post by Craig Brideau
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Hi Rosemary Yes I agree with you. There is sometimes some offset in z but I make a projection and then shift the red channel in xy if there is any obvious mis-alignment. Only have to do this occasionally though. Craig Yes Leica have a correction lens but it is for UV not blue. I would say chromatic alignment is much better for a UV/red combination but haven't tried UV/far red. -----Original Message----- From: Confocal Microscopy List [mailto:[hidden email]] On Behalf Of Craig Brideau Sent: Tuesday, 11 January 2011 11:38 a.m. To: [hidden email] Subject: Re: Glycerol Objectives - experience with ***** To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** That's odd. Doesn't Zeiss have a blue correction optic in the microscope to keep things chromatically aligned? Craig On Mon, Jan 10, 2011 at 3:32 PM, Rosemary White <[hidden email]>wrote: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > Hi Lloyd, > > I've found that the red and blue emission aren't quite lined up vertically, > at least with our "blue" 63x objective, so have to cut the top one or two > slices off a blue vertical series (depending on depth of slice), and the > bottom slices off a red series and reassemble to get the emissions aligned > - > i.e. from the same depth in the tissue. The objectives do vary a bit, > perhaps ours isn't as well corrected as some. > > cheers, > Rosemary > > > On 11/01/11 9:16 AM, "Lloyd Donaldson" <[hidden email]> > wrote: > > > ***** > > To join, leave or search the confocal microscopy listserv, go to: > > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > > ***** > > > > Hi Rosemary > > > > We don't really work with live tissue but we do have a Leica 63x water > lens on > > our old TCS NT. I never really found it particularly useful. I haven't > tried a > > direct comparison on our new SP5 II but I would expect the glycerol lens > to be > > much better unless you have to be in water. > > If your blue 63x is the same as ours I have imaged blue green and red > both > > sequentially and simultaneously without any obvious problem. We image > lignin > > at blue and or green emission and combine with alexa568 or alexa647 for > immuno > > work. There is sometimes some quenching going on so we separate the > lignin and > > alexa as far as we can. We have to mount in oil for this work which is > why I > > am using the blue lens. > > > > Lloyd > > > > -----Original Message----- > > From: Confocal Microscopy List [mailto:[hidden email]] > On > > Behalf Of Rosemary White > > Sent: Tuesday, 11 January 2011 10:48 a.m. > > To: [hidden email] > > Subject: Re: Glycerol Objectives - experience with > > > > ***** > > To join, leave or search the confocal microscopy listserv, go to: > > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > > ***** > > > > Dear Lloyd, > > > > Does the 63x glycerol objective provide substantial improvements over the > > 63x water (with correction collar) for live tissues? We have one of the > > "blue" Leica 63x objectives, corrected for the blue-UV end of the > spectrum > > (though only have 405 laser), which is great except when you want to > image > > both red and blue emission.... > > > > thanks, > > Rosemary White > > > > > > Dr Rosemary White > > CSIRO Plant Industry > > GPO Box 1600 > > Canberra, ACT 2601 > > Australia > > > > T 61 2 6246 5475 > > F 61 2 6246 5334 > > E [hidden email] > > > > > > > > On 11/01/11 6:21 AM, "Lloyd Donaldson" < > [hidden email]> > > wrote: > > > >> ***** > >> To join, leave or search the confocal microscopy listserv, go to: > >> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > >> ***** > >> > >> Jeremy > >> > >> We have a Leica 63x glycerol objective with adjusting ring which gives > very > >> noticeable improvement over 63x oil which we also have. We also have a > 20x > >> multi immersion objective that can use glycerol. We have both oil and > >> glycerol > >> objectives, although we prefer glycerol as a mounting medium it is > >> incompatible with some of our samples because of induced swelling so we > have > >> to mount in oil for those samples. We also have the oil lens because it > is UV > >> compatible - we have a 355 nm laser. > >> > >> > >> Dr Lloyd Donaldson > >> > >> Senior Scientist, Project Leader - Microscopy/Wood Identification > >> Scion - Next Generation Biomaterials > >> Private Bag 3020, Rotorua > >> New Zealand 3010 > >> > >> Ph: 64 7 343 5581 > >> > >> > >> > >> -----Original Message----- > >> From: Confocal Microscopy List [mailto:[hidden email]] > On > >> Behalf Of Jeremy Adler > >> Sent: Monday, 10 January 2011 9:39 p.m. > >> To: [hidden email] > >> Subject: Glycerol Objectives - experience with > >> > >> ***** > >> To join, leave or search the confocal microscopy listserv, go to: > >> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > >> ***** > >> > >> We are considering buying a new confocal for examining fixed and > >> potentially thick biological specimens. > >> Given the need to have to an RI match between the specimen, mounting > >> medium and immersion medium, I want to ask about the pros and cons of > >> glycerol objectives. > >> > >> Oil objectives appear to have no obvious advantages, the higher RI > >> will only apply if specimens are mounted in a medium with a RI close > >> to that of oil - while most media seem to have lower RIs. Why would > >> anyone choose an oil objective and which mounting media work for > >> thick specimens ? > >> > >> A possible disadvantage of glycerol objectives is that glycerol is > >> hygroscopic which could change its RI. Are there any RI equivalent > >> immersion media ?. > >> > >> So the pros and cons of oil or glycerol objectives. > >> > >> > >> > >> > >> > >> > >> > >> Jeremy Adler > >> Genetics & Pathology > >> Rudbeckslaboratoriet > >> Daghammersköljdsväg 20 > >> 751 85 Uppsala > >> Sweden > >> > >> 0046 (0)18 471 4607 > >> > >> Disclaimer: This e-mail and any attachments may contain information > which is > >> confidential or subject to copyright. If you receive this e-mail in > error, > >> please delete it. > >> Scion does not accept responsibility for anything in this e-mail which > is not > >> provided in the course of Scion's usual business or for any computer > virus, > >> data corruption, interference or delay arising from this e-mail. > > > > Disclaimer: This e-mail and any attachments may contain information which > is > > confidential or subject to copyright. If you receive this e-mail in > error, > > please delete it. > > Scion does not accept responsibility for anything in this e-mail which is > not > > provided in the course of Scion's usual business or for any computer > virus, > > data corruption, interference or delay arising from this e-mail. > Disclaimer: This e-mail and any attachments may contain information which is confidential or subject to copyright. If you receive this e-mail in error, please delete it. Scion does not accept responsibility for anything in this e-mail which is not provided in the course of Scion's usual business or for any computer virus, data corruption, interference or delay arising from this e-mail. |
Martin Wessendorf-2 |
In reply to this post by Rosemary.White
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** On 1/10/2011 4:32 PM, Rosemary White wrote: > I've found that the red and blue emission aren't quite lined up vertically, > at least with our "blue" 63x objective, so have to cut the top one or two > slices off a blue vertical series (depending on depth of slice), and the > bottom slices off a red series and reassemble to get the emissions aligned - > i.e. from the same depth in the tissue. The objectives do vary a bit, > perhaps ours isn't as well corrected as some. Can anyone explain where the difficulty arises in correcting for axial chromatic aberration? I've consistently seen serious axial chromatic aberration in good quality oil objectives from one very reputable manufacturer, between red, green and far-red (1 um off in the z-axis between green and red, and between red and far-red; 2 um between green and far-red). I have always heard that axial chromatic aberration was easy to correct for and would've thought that a solution for 3-color correction would've been found 100 years ago. However, I don't know enough optics to understand the subtleties. Are there trade-offs to trying to obtain good correction, besides the cost in scattering of adding additional lens elements? Thanks-- Martin -- Martin Wessendorf, Ph.D. office: (612) 626-0145 Assoc Prof, Dept Neuroscience lab: (612) 624-2991 University of Minnesota Preferred FAX: (612) 624-8118 6-145 Jackson Hall, 321 Church St. SE Dept Fax: (612) 626-5009 Minneapolis, MN 55455 e-mail: [hidden email] |
Craig Brideau |
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** To design a chromatically corrected optical system you need to use multiple optics made of different types of glass. The gist of it is that each glass has slightly different wavelength-dependent indecies of refraction. When you put them together in the right way you can partly cancel out the chromatically sensitive effects of the system. The problem is that you can usually only nail down two or three specific discrete wavelengths at a time. The simplest lens for this is an achromatic doublet. It uses two types of glass and has the same focal point for two specific wavelengths. Operating away from these two wavelengths will cause the focal point to drift. The better the design the less drift occurs, but it is really only 'perfect' for two very specific wavelengths. A triplet uses three pieces of glass (typically) and nails down three specific wavelengths. Basically you are limited to designing for specific wavelengths. The difficulty becomes which specific wavelengths do you want to design for? You can get 'good' correction over a range, but you can only be dead-on for discrete values. You can get 'close' over a fairly wide range, but it takes a lot of design work to pull this off. This is further complicated by the fact that most glasses have a steep change in optical properties towards the blue/violet/UV portion of the spectrum, so if you are working in that range it becomes trickier. The balance between the different glass types and their interactions with the overall design are highly complex, so as you make the lens better it becomes astronomically more complicated and thus expensive. Craig On Mon, Jan 10, 2011 at 4:18 PM, Martin Wessendorf <[hidden email]> wrote: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > On 1/10/2011 4:32 PM, Rosemary White wrote: > > I've found that the red and blue emission aren't quite lined up >> vertically, >> at least with our "blue" 63x objective, so have to cut the top one or two >> slices off a blue vertical series (depending on depth of slice), and the >> bottom slices off a red series and reassemble to get the emissions aligned >> - >> i.e. from the same depth in the tissue. The objectives do vary a bit, >> perhaps ours isn't as well corrected as some. >> > > Can anyone explain where the difficulty arises in correcting for axial > chromatic aberration? I've consistently seen serious axial chromatic > aberration in good quality oil objectives from one very reputable > manufacturer, between red, green and far-red (1 um off in the z-axis between > green and red, and between red and far-red; 2 um between green and far-red). > I have always heard that axial chromatic aberration was easy to correct for > and would've thought that a solution for 3-color correction would've been > found 100 years ago. However, I don't know enough optics to understand the > subtleties. Are there trade-offs to trying to obtain good correction, > besides the cost in scattering of adding additional lens elements? > > Thanks-- > > Martin > -- > Martin Wessendorf, Ph.D. office: (612) 626-0145 > Assoc Prof, Dept Neuroscience lab: (612) 624-2991 > University of Minnesota Preferred FAX: (612) 624-8118 > 6-145 Jackson Hall, 321 Church St. SE Dept Fax: (612) 626-5009 > Minneapolis, MN 55455 e-mail: [hidden email] > |
George McNamara |
In reply to this post by Jeremy Adler-3
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Hi Jeremy, A lot cheaper to optimize the specimen refractive index tl an oil immersion lens. $63.20 ... 2,2'-thiodiethanol, 1 liter (Staudt ... Hell, Microsc Res Tech). Pricing from one of the microscope companies (other companies will be similar): $12,445 ... 63x/1.2 water w/correction collar (coverglass thickness 0.14 to 0.19 mm), apochromat $10,732 ... 63x/1.3 Imm Corr DIC (corr = coverglass thickness 0.15 to 0.19 mm) $6,723 or $7,065 ... 63x/1.4 oil iris NA 0.7 to 1.4), plan apochromat $6,075 ... 63x/1.4 oil DIC (for coverglass 0.17 mm) So, you can buy the last objective lens (DIC prisms not included) and a whole lot of TDE for a lot less than the other lenses. See Stan Vitha's email message to the listserv for his recommendation on gradual transition into TDE. Ignoring bulk volume discount, you could buy 1,000 bottles of 1 liter TDE plus the last objective lens for about the same price as the first lens listed above. It will be a long time to use up 1,000 liters of TDE! Philippe Clemenceau <[hidden email]> sent me a PDF of his company's adaptive optics device for microscopy (he sent an email to the listserv recently). Ask him for it. See also http://www.imagine-optic.com/iop_applications_adaptive-optics_microscopy-life-sciences_en.php I am looking forward to finding out the pricing (and compatibility with cameras and imaging software) for use with improving standard widefield fluorescence images. Could be a lot more useful than the manual (and therefore pretty useless for thick specimens) correction collars on various lenses. Philippe mentioned that his company's device can enable some types of 3D PALM/STORM, and also reduce spherical aberrations for both widefield fluorescence microscopy and biplane FPALM nanoscopy. 3i has also been offering the "SAC - spherical aberration corrector" for a couple of years. enjoy, George TDE price from http://www.sigmaaldrich.com/catalog/Lookup.do?N5=All&N3=mode+matchpartialmax&N4=thiodiethanol&D7=0&D10=thiodiethanol&N1=S_ID&ST=RS&N25=0&F=PR On 1/10/2011 3:39 AM, Jeremy Adler wrote: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > We are considering buying a new confocal for examining fixed and > potentially thick biological specimens. > Given the need to have to an RI match between the specimen, mounting > medium and immersion medium, I want to ask about the pros and cons of > glycerol objectives. > > Oil objectives appear to have no obvious advantages, the higher RI > will only apply if specimens are mounted in a medium with a RI close > to that of oil - while most media seem to have lower RIs. Why would > anyone choose an oil objective and which mounting media work for > thick specimens ? > > A possible disadvantage of glycerol objectives is that glycerol is > hygroscopic which could change its RI. Are there any RI equivalent > immersion media ?. > > So the pros and cons of oil or glycerol objectives. > > > > > > > > Jeremy Adler > Genetics & Pathology > Rudbeckslaboratoriet > Daghammersköljdsväg 20 > 751 85 Uppsala > Sweden > > 0046 (0)18 471 4607 > |
Andreas Bruckbauer |
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Hi, a year ago Olympus has launched a 60x lens which is corrected for 405 nm in contrast to the 435 nm commenly corrected for. http://www.microscopy-analysis.com/news/olympus-launches-super-corrected-60x-14-na-objective-lensc They claim 0.1 - 0.2 micrometer chromatic shift from 405 - 650 nm. best wishes Andreas -----Original Message----- From: George McNamara <[hidden email]> To: [hidden email] Sent: Tue, 11 Jan 2011 2:17 Subject: Re: Glycerol Objectives - experience with ***** To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Hi Jeremy, A lot cheaper to optimize the specimen refractive index tl an oil immersion lens. $63.20 ... 2,2'-thiodiethanol, 1 liter (Staudt ... Hell, Microsc Res Tech). Pricing from one of the microscope companies (other companies will be similar): $12,445 ... 63x/1.2 water w/correction collar (coverglass thickness 0.14 to 0.19 mm), apochromat $10,732 ... 63x/1.3 Imm Corr DIC (corr = coverglass thickness 0.15 to 0.19 mm) $6,723 or $7,065 ... 63x/1.4 oil iris NA 0.7 to 1.4), plan apochromat $6,075 ... 63x/1.4 oil DIC (for coverglass 0.17 mm) So, you can buy the last objective lens (DIC prisms not included) and a whole lot of TDE for a lot less than the other lenses. See Stan Vitha's email message to the listserv for his recommendation on gradual transition into TDE. Ignoring bulk volume discount, you could buy 1,000 bottles of 1 liter TDE plus the last objective lens for about the same price as the first lens listed above. It will be a long time to use up 1,000 liters of TDE! Philippe Clemenceau <[hidden email]> sent me a PDF of his company's adaptive optics device for microscopy (he sent an email to the listserv recently). Ask him for it. See also http://www.imagine-optic.com/iop_applications_adaptive-optics_microscopy-life-sciences_en.php I am looking forward to finding out the pricing (and compatibility with cameras and imaging software) for use with improving standard widefield fluorescence images. Could be a lot more useful than the manual (and therefore pretty useless for thick specimens) correction collars on various lenses. Philippe mentioned that his company's device can enable some types of 3D PALM/STORM, and also reduce spherical aberrations for both widefield fluorescence microscopy and biplane FPALM nanoscopy. 3i has also been offering the "SAC - spherical aberration corrector" for a couple of years. enjoy, George TDE price from http://www.sigmaaldrich.com/catalog/Lookup.do?N5=All&N3=mode+matchpartialmax&N4=thiodiethanol&D7=0&D10=thiodiethanol&N1=S_ID&ST=RS&N25=0&F=PR On 1/10/2011 3:39 AM, Jeremy Adler wrote: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > We are considering buying a new confocal for examining fixed and > potentially thick biological specimens. > Given the need to have to an RI match between the specimen, mounting > medium and immersion medium, I want to ask about the pros and cons of > glycerol objectives. > > Oil objectives appear to have no obvious advantages, the higher RI > will only apply if specimens are mounted in a medium with a RI close > to that of oil - while most media seem to have lower RIs. Why would > anyone choose an oil objective and which mounting media work for > thick specimens ? > > A possible disadvantage of glycerol objectives is that glycerol is > hygroscopic which could change its RI. Are there any RI equivalent > immersion media ?. > > So the pros and cons of oil or glycerol objectives. > > > > > > > > Jeremy Adler > Genetics & Pathology > Rudbeckslaboratoriet > Daghammersköljdsväg 20 > 751 85 Uppsala > Sweden > > 0046 (0)18 471 4607 > |
In reply to this post by George McNamara
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Hello All, To all users of scientific imaging systems: If you or users of your facility could benefit from a free forum on scientific imaging and image analysis, I'm hosting one. This is not a listserv like the Confocal Microscopy group, but a web forum to give users the option of uploading images for evaluation. For more information and to register, go to: http://www.imagingandanalysis.com/instruction.html Cheers, Jerry -- Jerry Sedgewick Sedgewick Initiatives 965 Cromwell Avenue Saint Paul, MN 55114 651-788-2261 [hidden email] http://www.imagingandanalysis.com Author of: "Scientific Imaging with Photoshop: Methods, Measurement, and Output" |
In reply to this post by Adrian Smith-6
*****
To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Adrian Smith <[hidden email]> writes: Sorry I'm a bit (3 months!) late to this discussion. > On related note our Olympus rep just pointed me to their new silicone oil objectives... > > http://www.microscopy-analysis.com/news/olympus-introduces-uplsapo-30x-and-60x-silicone-oil-immersion-objectives > > Anyone tried one? Yes we have the 60x SI objective and use it extensively to look at Drosophila oocytes and embryos in halocarbon oil. It is especial effective on our spinning disk system, where is leads to massive signal increase compared to either an oil or water immersion objective. Ian -- Ian Dobbie Micron Imaging Facility Manager, Biochemistry, University of Oxford, South Parks Road, Oxford OX1 3QU Tel: 01865 613323 Email: [hidden email] |
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