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One solution to the small image size is to use a camera with many 
more pixels - see http://www.lumenera.com - they have a 21mpix camera 
and will soon have a 30mpix one as well.

At 01:00 PM 11/15/2006 +0100, you wrote:
>Search the CONFOCAL archive at
>http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal
>
>We are having difficulties with a Quad Viewer from Optical Insights. 
>It splits and output image into 4 and allows for 4 emission filters. 
>The attraction is that you can get 4 images concurrently on a 
>widefield system, and potentially on a spinning disk confocal. The 
>downside is that the images are small.
>
>Our problem is that we see shading in one corner of the whole image, 
>Optical Insights assure us that this is a problem limited to Zeiss 
>microscopes but have yet to solve the problem.
>
>What experiences do other users have with this potentially 
>attractive equipment, especially on Zeiss microscopes ?.
>
>
>Jeremy Adler
>Cell Biology
>The Wenner-Gren Inst.
>Arrhenius Laboratories E5
>Stockholm University
>Stockholm 106 91
>Sweden
>
>________________________________