Leica 40X water dipping objective failure

[milton charlton]

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http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal

Dear Confocal members,
Has anyone had a failure of the Leica 40X water dipping objective  (HCX APO
L 40X /0.80 W U-V-I) ?  Ours appears to have glass chips between the first
and second elements. There is no sign of damage to the front element or any
other sign of external damage. We don't think the objective was ever removed
from the microscope since installation.
Thanks.
Milton Charlton

Milton P. Charlton, Professor, Graduate Coordinator
Physiology Department
Medical Science Building #3308
University of Toronto
1 King's College Circle
Toronto, ON, M5S1A8
Canada
tel:  [phone]
fax:  [phone]
[hidden email]


*************************************************

[Andrew Resnick]

Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal

We've had that exact lens, as well as the 63X and 20X versions
installed for 1.5 years, there have been no issues with any.

Andy

At 11:40 AM 2/6/2008, you wrote:

>Search the CONFOCAL archive at
>http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal
>
>Dear Confocal members,
>Has anyone had a failure of the Leica 40X water dipping objective  (HCX APO
>L 40X /0.80 W U-V-I) ?  Ours appears to have glass chips between the first
>and second elements. There is no sign of damage to the front element or any
>other sign of external damage. We don't think the objective was ever removed
>from the microscope since installation.
>Thanks.
>Milton Charlton
>
>Milton P. Charlton, Professor, Graduate Coordinator
>Physiology Department
>Medical Science Building #3308
>University of Toronto
>1 King's College Circle
>Toronto, ON, M5S1A8
>Canada
>tel:  [phone]
>fax:  [phone]
>[hidden email]
>
>
>*************************************************

Andrew Resnick, Ph. D.
Instructor
Department of Physiology and Biophysics
Case Western Reserve University
216-368-6899 (V)
216-368-4223 (F)

[Hella Hartmann]

Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal

Dear Milton,

we have had a problem with water droplets in a HCX APO L U_V_I 20x/0,5
lens after using it for 2 mounth. We just sended it back to Leica and
got it repaired for free. But clearly this was water, no glass.

Best, Hella

>Search the CONFOCAL archive at
>http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal
>
>Dear Confocal members,
>Has anyone had a failure of the Leica 40X water dipping objective  (HCX APO
>L 40X /0.80 W U-V-I) ?  Ours appears to have glass chips between the first
>and second elements. There is no sign of damage to the front element or any
>other sign of external damage. We don't think the objective was ever removed
>from the microscope since installation.
>Thanks.
>Milton Charlton
>
>Milton P. Charlton, Professor, Graduate Coordinator
>Physiology Department
>Medical Science Building #3308
>University of Toronto
>1 King's College Circle
>Toronto, ON, M5S1A8
>Canada
>tel:  [phone]
>fax:  [phone]
>[hidden email]
>
>
>*************************************************
>  
>

--
Dr. Hella Hartmann
Biotechnologisches Zentrum der TU Dresden
Tatzberg 47-51
01307 Dresden
Germany
email: [hidden email]
Tel: [phone]
Fax: [phone]

[Craig Brideau]

Search the CONFOCAL archive at http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal Our lab had some problems with some Nikon lenses sucking up a small amount of moisture, mainly due to temperature cycling in our experiments.  Thirty minutes in a vacuum desiccator cleaned it up nicely.

Craig

On Feb 7, 2008 1:30 AM, Hella Hartmann <[hidden email]> wrote:

Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal

Dear Milton,

we have had a problem with water droplets in a HCX APO L U_V_I 20x/0,5
lens after using it for 2 mounth. We just sended it back to Leica and
got it repaired for free. But clearly this was water, no glass.

Best, Hella

>Search the CONFOCAL archive at
>http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal
>
>Dear Confocal members,
>Has anyone had a failure of the Leica 40X water dipping objective  (HCX APO
>L 40X /0.80 W U-V-I) ?  Ours appears to have glass chips between the first
>and second elements. There is no sign of damage to the front element or any
>other sign of external damage. We don't think the objective was ever removed
>from the microscope since installation.
>Thanks.
>Milton Charlton
>
>Milton P. Charlton, Professor, Graduate Coordinator
>Physiology Department
>Medical Science Building #3308
>University of Toronto
>1 King's College Circle
>Toronto, ON, M5S1A8
>Canada
>tel:  [phone]
>fax:  [phone]
>[hidden email]
>
>
>*************************************************
>
>

--
Dr. Hella Hartmann
Biotechnologisches Zentrum der TU Dresden
Tatzberg 47-51
01307 Dresden
Germany
email: [hidden email]
Tel: [phone]
Fax: [phone]