Is there any technical reason why one couldn't build a
high-quality optical converer to go between a DSLR body with 1.5x crop and
an full-frame lens? The telephoto end of the lens spectrum is pretty
easy to fill with old glass, but the wideangle and fast normal is pretty
difficult. I just bought an SMC-M 50/1.4 and an SMC-K 50/1.4 for my -DS
and I *love* the speed, sharpness, and bokeh. What I don't like is the
effective 75mm FOV.
For lenses designed with large image circles, it would seem that a
wideangle converter between the lens and the body could collect the
*entire* circle of light projected onto the film plane and preserve the
FOV and aperture of an 50/1.4 on a DSLR.
Possible? Crazy? Should I just shut up and buy the new
digital-only 30/1.4 from Smegma? Too rich for my blood.
-Cory
--
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* Cory Papenfuss *
* Electrical Engineering candidate Ph.D. graduate student *
* Virginia Polytechnic Institute and State University *
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