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  Previous versions of Smiert Spionam's message #10160773 « Canon SH 30/1.7 -- Demi 17 half frame lens on NEX »

  

Smiert Spionam
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Upload & Sell: On
"New" alt lens for NEX -- but what is it?!?


Got a wild hair to inflict harm on a poor defenseless rangefinder, and I\'ve cobbled together something that will, I think, be useful on my NEX. It began as a little guy that had seen better days, and I quickly turned it into a pile of chaos.

From this:







Came this:







Any guesses as to what it is?

I\'ve still got some work to do. I\'ve now done a basic mount in a lens cap, which has the benefit of me being able to use some of the camera hardware as a locking flange -- but it\'s not as stable as a true adapter-based mount, and I still have some fussing to do to get it to infinity focus. I also need to rig up an aperture control -- the donor lens had a focus-linked aperture system (for flash), and it doesn\'t readily adapt to purely manual use. Still, it\'s a lot closer to usable than it was 24 hours ago.

A couple of shots. First, down a stop or so from wide open, followed by a 100% crop, then two wide open crops.

























Wide open, it\'s a bit bloomy, but still usable. Overall, contrast and color saturation are low, but sharpness is good. Any guesses as to what it is? It\'s a moderate wide, faster than f/2, and approximately 45 years old....



Dec 12, 2011 at 02:36 PM





  Previous versions of Smiert Spionam's message #10160773 « Canon SH 30/1.7 -- Demi 17 half frame lens on NEX »