PhotoMaximum wrote:
Does your Hexanon 40/1/8 work on a FF body like the 5D?
I am not sure since I do not have one or convenient access to one. It may hang the mirror because the rear element does protrude at infinity.
How was the conversion process?
Conversion process is not too hard: replace the rear mount, shave the aperture ring, play with the focus helical to get most of the shift to the rear and space the front filter ring out some so the lens assembly can move back far enough to hit infinity. The aperture control link then needs to be made, I used a m42->EOS adapter to start so I ground a place for the aperture ring to be able to link to the internal control arm. I did shave my adapter but in the end I do not know how much I really needed to since it now focuses to infinity well before hitting the stop.
The Pentax FA 43mm Limited provides great IQ in such a small package On top of everything it's also an autofocus lens. Metaphorically speaking it's a feather weight champion punching it's way through in the heavy weight fights
On top of everything it's also an autofocus lens. Metaphorically speaking it's a feather weight champion punching it's way through in the heavy weight fights 
