As Rosemary suggested, the Edmund Optics catalog has c-mount tubes with 
an adapter for the objective mount, and a c-mount to t-mount that will 
then attach to a Nikon or Canon mount.  In my own experience with a 
non-infinity lens at 140mm from back of lens to camera chip, everything 
worked well. For infinity objectives, you might be able to get away with 
a 175 or 200mm focal length meniscus for the tube lens. With Edmund 
Optics c-mount tubes, you may have to get adapters to include the lens 
in the path (the lenses may not fit in the tube at the diameters sold).

Jerry


Rosemary White wrote:
> An adapter from one of the optical companies like Edmund Optics will
> probably do this, you'll also need a tube lens in the adapter - check the
> microscopy sections of these catalogues.  We've been looking into this
> ourselves, and may go the route of purchasing one of their very long working
> distance objectives with adapter to do time-lapse imaging of root growth.
> cheers,
> Rosemary
>
> Rosemary White
> CSIRO Plant Industry
> GPO Box 1600
> Canberra, ACT 2601
> Australia
>
> ph 61 2 6246 5475
> fx 61 2 6246 5334
>
>
>
> On 29/07/09 6:31 AM, "Andy Resnick" <[log in to unmask]> wrote:
>
>   
>> Leica objective threads are pretty darn close to a c-mount
>> specification; from there you can usually get other adaptors (i.e.
>> bayonet-to c-mount, etc). Not sure what the other manufacturers use.
>>
>> ----- Original Message -----
>> From: "Stroetz, Randolph W., R.R.T., R.C.P." <[log in to unmask]>
>> Date: Tuesday, July 28, 2009 4:25 pm
>> Subject: Odd camera adapter
>> To: [log in to unmask]
>>
>>     
>>> Has anyone seen or used an adapter allowing an infinity-corrected
>>> microscope objective to be mounted on a digital SLR camera?
>>>
>>> Thanks, Randy
>>>
>>>       
>
>
>   


-- 
Jerry (Gerald) Sedgewick
Core Facility Director, Biomedical Image Processing Lab (BIPL)
University of Minnesota, Department of Neuroscience
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612-624-6607
[log in to unmask]
http://www.bipl.umn.edu
Author: "Scientific Imaging with Photoshop: Methods, Measurement and Output." 

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