P3D RBT 65mm vs 75mm

[Jon Golden <3dman@xxxxxxxxxxx>]

Andrea Blair wrote:
>>If I had a spare couple of (thousand) dollars, I would probably get the 
65mm if it produced full frame. Then (by my limited understanding of the 
RBT), I could have it processed and mounted as regular 2x2s. Is this 
correct? I would like the closer lens spacing since I do a lot close-up 
and macro photography, which would be the main reason for getting an RBT 
and RBT Macro Attachment (I'll let you know when I win the lottery, 
Jon!).

Andrea and all:
RBT X A 65mm base series  23 x 33 mm image non standard spacing, cannot
be precessed to standard 2 x 2 mounts...mount your own
RBT X B 75mm base series  24 x 26 mm images standard frames that can be
processed to 2 x 2 mounts by your lab.
RBT X C 65mm base series 24 x 36 mm frame image non standard spacing,
cannot be precessed to standard 2 x 2 mounts...mount your own

MACRO for RBT can be adapted to any RBT XA or  XB series camera.....the
65mm base would have no advantage for a MACRO user over the 75mm model,
in fact the 75mm model could be sent to the lab for standard 2 x 2
processing...so thats a small advantage for anyone shooting a lot of
images.

Good luck with the lottery Andrea!  Jon G



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