Progress

New comer Canon EOS 7D has not a few developed functions compared with old 10D, especially, 100% field view ratio is above a word finding out no reason to return to old one. Functional button switches are almost the same, though many additive are observed. Smaller mirror situating just frontal part of CMOS sensor with 45 degree angle has influence a little, that are arranged to accept EF-S lenses with shorter lens distance. Thanks to this modification, old zoom lens deserted by my son is acceptable for new body and probably I would use it. An experimental comparison, Canon EF 50/1,8-2 and Minolta Rokkor-PG 50/1,4 revealed the superiority of ancient model even now as mentioned in various reports. The price of 7D was just 1/3 of 5D Mk3. From some different standing point of view, APS-C that is smaller than full size, has a unignorable advantage instead, suing some better area if the lens that is designed for full size formatting image cutting of the inferior end part. This way was often the case I had been utilized since the silver salt film period, Hasselblad Carl Zeiss Planar 100/3,5 was set on Mamiya 645 1000S focal-plane shuttered model. Now I'm enjoying photographic hobby in the same way on Digital formatting image.