I've Cropped My Pentax 645 Lenses Myself, in 1.6X! :-o

Since an original 645 lens when put onto an 135 FF body is cropped only 1.6X, I have decided to do this! :-o :-)



I suppose the degrade in IQ (in particular, the resolving power of the 645 lenses) would not be too much as this is exactly what Pentax has been doing/forcing us to do exactly the same thing with more or less the same crop ratio for all those K-mount film lenses of us when they are