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To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy Post images on http://www.imgur.com and include the link in your posting. ***** Is there some one who know the new Zeiss confocal LSM 880. It's seem to be a rapid mono point scan with a new line 32 detectors. It is possible to use it in 2P mode with OPO. These ones are two time more sensible than LSM780. Regards |
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To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy Post images on http://www.imgur.com and include the link in your posting. ***** I think Zeiss are announcing at end of month Michelle > On 17 Jul 2014, at 08:47, "Pascal Weber" <[hidden email]> wrote: > > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > Post images on http://www.imgur.com and include the link in your posting. > ***** > > Is there some one who know the new Zeiss confocal LSM 880. > It's seem to be a rapid mono point scan with a new line 32 detectors. > It is possible to use it in 2P mode with OPO. > These ones are two time more sensible than LSM780. > > Regards |
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To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy Post images on http://www.imgur.com and include the link in your posting. ***** Dear Pascal, The Zeiss LSM 880 page is now live on Zeiss website: http://www.zeiss.com/microscopy/en_de/products/confocal-microscopes/lsm-880.html It uses the previously discussed Airy scan method, that is said to improve S/N and/or spatial resolution. Christophe 2014-07-17 10:11 GMT+02:00 Michelle Peckham <[hidden email]>: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > Post images on http://www.imgur.com and include the link in your posting. > ***** > > I think Zeiss are announcing at end of month > > Michelle > > > On 17 Jul 2014, at 08:47, "Pascal Weber" <[hidden email]> > wrote: > > > > ***** > > To join, leave or search the confocal microscopy listserv, go to: > > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > > Post images on http://www.imgur.com and include the link in your > posting. > > ***** > > > > Is there some one who know the new Zeiss confocal LSM 880. > > It's seem to be a rapid mono point scan with a new line 32 detectors. > > It is possible to use it in 2P mode with OPO. > > These ones are two time more sensible than LSM780. > > > > Regards > |
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To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy Post images on http://www.imgur.com and include the link in your posting. ***** Happy to see more details about the system. It looks almost exactly like Enderlein's ISM with a much faster detector and different postprocessing. This is impressive, and quite different from instant SIM/OPRA/rescan confocal. The big difference is how many pixels are read out per voxel measured. Airyscanning (and ISM and MSIM) reads out 30+ pixels per voxel measured, and require postprocessing to see an image. Instant SIM/OPRA/rescan confocal read out one pixel per voxel, and display a sqrt(2) resolution improvement before any processing - you could view the superresolution image through eyepieces! Digital vs. analog processing is an interesting tradeoff: *Digital processing means bigger data files it was quite a relief when we switched from MSIM to instant SIM and our images got ~200x smaller on disk. I assume Airyscan image data is ~32x bigger than standard images. *Digital processing is more flexible We can't dynamically adjust our instant SIM pinhole after acquisition like we could with MSIM, but in practice we seldom did this. *Digital processing means more noise Measuring >30x more pixels per voxel means >30x more doses of read noise. This doesn't mean SNR is 30x worse, but there's a nontrivial difference. *Digital processing algorithms can be more sophisticated As Zeiss points out, the method Enderlein used to process ISM data doesn't give 3D superresolution, and I agree that deconvolution is the right way to process this kind of data. However, Maria did some 2D simulations that suggest joint deconvolution of ISM data gives results that are hard to distinguish from Enderlein's trick followed by simple Richardson-Lucy deconvolution ( http://dx.doi.org/10.1002/cphc.201300831 , Figure 4). I think it's an open, interesting question if the analog processing in instant SIM discards information compared to digital processing, especially in 3D. Does anyone know if these 32-channel GaAsP detectors are available without buying a whole microscope? Do we know anything about their noise characteristics? If they managed to make the detector fast without sacrificing too much noise, that's very exciting. On Thu, Jul 31, 2014 at 8:34 AM, Christophe Leterrier < [hidden email]> wrote: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > Post images on http://www.imgur.com and include the link in your posting. > ***** > > Dear Pascal, > > The Zeiss LSM 880 page is now live on Zeiss website: > > http://www.zeiss.com/microscopy/en_de/products/confocal-microscopes/lsm-880.html > > It uses the previously discussed Airy scan method, that is said to improve > S/N and/or spatial resolution. > > Christophe > > > 2014-07-17 10:11 GMT+02:00 Michelle Peckham <[hidden email]>: > > > ***** > > To join, leave or search the confocal microscopy listserv, go to: > > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > > Post images on http://www.imgur.com and include the link in your > posting. > > ***** > > > > I think Zeiss are announcing at end of month > > > > Michelle > > > > > On 17 Jul 2014, at 08:47, "Pascal Weber" <[hidden email]> > > wrote: > > > > > > ***** > > > To join, leave or search the confocal microscopy listserv, go to: > > > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > > > Post images on http://www.imgur.com and include the link in your > > posting. > > > ***** > > > > > > Is there some one who know the new Zeiss confocal LSM 880. > > > It's seem to be a rapid mono point scan with a new line 32 detectors. > > > It is possible to use it in 2P mode with OPO. > > > These ones are two time more sensible than LSM780. > > > > > > Regards > > > |
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To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy Post images on http://www.imgur.com and include the link in your posting. ***** Am 31.07.2014 18:54, schrieb Andrew York: > *Digital processing means bigger data files > it was quite a relief when we switched from MSIM to instant SIM and our > images got ~200x smaller on disk. I assume Airyscan image data is ~32x > bigger than standard images. Yes, it is. Plus the processed image, multiplied with what you hope to gain in resolution, according to Nyquist. If resolution is supposed to be 1.7x better, with the smaller pixel size in x and y required that would be 1.7x1.7 x 33 = 95 times more data than standard. Or is it sufficient to record with normal pixel size and the smaller pixel size results from the reconstruction only? Steffen -- ------------------------------------------------------------ Steffen Dietzel, PD Dr. rer. nat Ludwig-Maximilians-Universität München Walter-Brendel-Zentrum für experimentelle Medizin (WBex) Head of light microscopy Mail room: Marchioninistr. 15, D-81377 München Building location: Marchioninistr. 27, München-Großhadern |
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To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy Post images on http://www.imgur.com and include the link in your posting. ***** This is an interesting question. With MSIM, we recorded with "normal" size camera pixels, and "normal" size scan steps, and resampled to smaller image pixels during our postprocessing. Our thinking was, our camera only had to satisfy Nyquist for the emission PSF, and the scan had to satisfy Nyquist for the excitation PSF. I'm less sure about Z, and how important it is to take smaller z-steps. We didn't do an especially detailed study of this, though. It's possible you're much better off with smaller pixels or smaller steps. On Fri, Aug 1, 2014 at 6:09 AM, Steffen Dietzel <[hidden email]> wrote: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > Post images on http://www.imgur.com and include the link in your posting. > ***** > > Am 31.07.2014 18:54, schrieb Andrew York: > > > *Digital processing means bigger data files > > it was quite a relief when we switched from MSIM to instant SIM and our > > images got ~200x smaller on disk. I assume Airyscan image data is ~32x > > bigger than standard images. > > Yes, it is. Plus the processed image, multiplied with what you hope to > gain in resolution, according to Nyquist. If resolution is supposed to > be 1.7x better, with the smaller pixel size in x and y required that > would be 1.7x1.7 x 33 = 95 times more data than standard. > > Or is it sufficient to record with normal pixel size and the smaller > pixel size results from the reconstruction only? > > Steffen > > > -- > ------------------------------------------------------------ > Steffen Dietzel, PD Dr. rer. nat > Ludwig-Maximilians-Universität München > Walter-Brendel-Zentrum für experimentelle Medizin (WBex) > Head of light microscopy > > Mail room: > Marchioninistr. 15, D-81377 München > > Building location: > Marchioninistr. 27, München-Großhadern > |
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To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy Post images on http://www.imgur.com and include the link in your posting. ***** Andrew: You can select your own PMT GaAsP detector, just the same brand that is inside that system here: http://www.hamamatsu.com/resources/pdf/etd/p-dev_2013_TOTH0021E01.pdf I hope you enjoy Gabriel OH > Date: Fri, 1 Aug 2014 10:47:10 -0400 > From: [hidden email] > Subject: Re: Zeiss LSM 880 > To: [hidden email] > > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > Post images on http://www.imgur.com and include the link in your posting. > ***** > > This is an interesting question. With MSIM, we recorded with "normal" size > camera pixels, and "normal" size scan steps, and resampled to smaller image > pixels during our postprocessing. Our thinking was, our camera only had to > satisfy Nyquist for the emission PSF, and the scan had to satisfy Nyquist > for the excitation PSF. I'm less sure about Z, and how important it is to > take smaller z-steps. > > We didn't do an especially detailed study of this, though. It's possible > you're much better off with smaller pixels or smaller steps. > > > On Fri, Aug 1, 2014 at 6:09 AM, Steffen Dietzel <[hidden email]> wrote: > > > ***** > > To join, leave or search the confocal microscopy listserv, go to: > > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > > Post images on http://www.imgur.com and include the link in your posting. > > ***** > > > > Am 31.07.2014 18:54, schrieb Andrew York: > > > > > *Digital processing means bigger data files > > > it was quite a relief when we switched from MSIM to instant SIM and our > > > images got ~200x smaller on disk. I assume Airyscan image data is ~32x > > > bigger than standard images. > > > > Yes, it is. Plus the processed image, multiplied with what you hope to > > gain in resolution, according to Nyquist. If resolution is supposed to > > be 1.7x better, with the smaller pixel size in x and y required that > > would be 1.7x1.7 x 33 = 95 times more data than standard. > > > > Or is it sufficient to record with normal pixel size and the smaller > > pixel size results from the reconstruction only? > > > > Steffen > > > > > > -- > > ------------------------------------------------------------ > > Steffen Dietzel, PD Dr. rer. nat > > Ludwig-Maximilians-Universität München > > Walter-Brendel-Zentrum für experimentelle Medizin (WBex) > > Head of light microscopy > > > > Mail room: > > Marchioninistr. 15, D-81377 München > > > > Building location: > > Marchioninistr. 27, München-Großhadern > > |
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