I recently inherited a Solid Cat lens made by Perkin Elmer
in the sixties and at some point marketed by Vivitar.
It is an 800 mm f/11 tele that is very compact (catadioptric/Cassegrain), about the size of a 28-oz canned food tin.
http://www.luminous-landscape.com/revie ... _cat.shtml
WHAT IS THE BEST CHOICE FOR A CAMERA BACK?
I do want to make a serious effort to optimize the interface rather than just cobbling together something that works.
Lens weight (~3 lbs) will dominate ergonomics
Basic engineering - focal plane alignment, depth of focus, mounting hardware
Top flight image stabilization (body mount). 800mm tele (but heavy)
---bandwidth of response; range of travel of compensation elements
Standard DSLR body (front overhang of prism) may interfere with mounting
Sensor that is a match to use conditions
--- sensitivity -- high shutter speeds will be the norm.
Visibility of darker image in LCD - f/11
Thanks to anyone who takes this up!