Originally posted by elsdad Hi
I posted this earlier and if it takes a little longer to show I apologize for posting twice. I want to know how to compare the focal lengths of 6X7 lenses to 645D lenses. I have been thinking of buying the 6x7 to 645 conversion adapter to use on a 645D camera and want to know how the 6x7 lens will perform on the 645 camera.
Thanks in advance
elsdad
The crop from 67 to 645D is about 1.5. A 300mm 67 lens will have the same field of view as a 200mm lens on a 645D camera.
Similarly,
The crop from 67 to 645 is about 1.25. A 150mm 67 lens will have the same field of view as a 120mm lens on a 645 camera.
I hop that this helps.
Regards
Chris Stone