Hi Hector:

    For photography during surgery a much longer lens is needed to 
provide longer working distance and avoid the problems you mentioned. 
For the F series Nikons (F4, F5) the 180 mm lens was often used. I don't 
know if that lens will fit the D series cameras, call NikonUSA and ask 
them. Perhaps they make a longer macro lens for the D series.
    If you want more than life size magnification of rat hearts, etc. 
you will need to extend the lens with a bellows or extension tubes. 
Again, call NikonUSA and tell them what you want to do.

Geoff

Hector Mobine wrote:

>Hi Netters, 
>	I've been put in charge of finding a lens for our Nikon D70 that can
>be used to image histological specimens (fixed rat hearts and organs mainly)
>after paraffin-embedding and for imaging during surgery. I was told a 60mm
>Nikon Macro lens would work well, but am concerned that it may need to be
>placed too close to the subject during surgery violating the sterile
>requirements. Anyone have experience with lenses that could help me out?
>
>Thank you in advance. 
>
>Hector Mobine 
>
>
>
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>


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Geoff McAuliffe, Ph.D.
Neuroscience and Cell Biology
Robert Wood Johnson Medical School
675 Hoes Lane, Piscataway, NJ 08854
voice: (732)-235-4583; fax: -4029 
mcauliff@umdnj.edu
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