keithwms
Member
I don't really think you can compare them, they handle very differently. Maybe you could tell us more about your shooting style and what subjects interest you...
The best piece of advice I can give is to get these cameras in your hands for a weekend and try 'em out. You will see that they are quite different in every respect.
The 645 system features some faster lenses (there is a manual 80/1.9) and with the AF bodies you do get semi-decent AF, that may be an issue for you. If you are interested in long tele (sports, wildlife) then 645 would be a better choice, if you want to go wide then larger formats almost always win. Yes you can shoot 645 on a 67 camera but it's really not optimal in terms of lens performance aand that's a helluva lot of gear to transport for that purpose. I think I'd much rather shoot 67 with a 2x TC onto 67 film than crop into the neg or chrome by using a 645 back.
I like 6x7 systems because of the rotating back and, of course, the much larger negs and slides. Also, bellows focusing has its advantages, especially if you want to do macro. But indeed the 67 bodies are hefty.
My favourite mamiya is the mamiya 6 RF, but it is quite specialized. An rb or rz is an all-round workhorse. Same goes for the 645s, only they handle very differently from the rb and rz.
I shot 645 for a while and I like the 35mm-esque handling of it, but I love rotating back 6x7. And there is a 6x8 back for the rb, by the way. Technique being equal, my own feeling is a 6x7 chrome made with one of the better mamiya lenses can seriously rival 4x5" for any reasonable enlargement. (I leave it to you to decide the meaning of "reasonable")
The best piece of advice I can give is to get these cameras in your hands for a weekend and try 'em out. You will see that they are quite different in every respect.
The 645 system features some faster lenses (there is a manual 80/1.9) and with the AF bodies you do get semi-decent AF, that may be an issue for you. If you are interested in long tele (sports, wildlife) then 645 would be a better choice, if you want to go wide then larger formats almost always win. Yes you can shoot 645 on a 67 camera but it's really not optimal in terms of lens performance aand that's a helluva lot of gear to transport for that purpose. I think I'd much rather shoot 67 with a 2x TC onto 67 film than crop into the neg or chrome by using a 645 back.
I like 6x7 systems because of the rotating back and, of course, the much larger negs and slides. Also, bellows focusing has its advantages, especially if you want to do macro. But indeed the 67 bodies are hefty.
My favourite mamiya is the mamiya 6 RF, but it is quite specialized. An rb or rz is an all-round workhorse. Same goes for the 645s, only they handle very differently from the rb and rz.
I shot 645 for a while and I like the 35mm-esque handling of it, but I love rotating back 6x7. And there is a 6x8 back for the rb, by the way. Technique being equal, my own feeling is a 6x7 chrome made with one of the better mamiya lenses can seriously rival 4x5" for any reasonable enlargement. (I leave it to you to decide the meaning of "reasonable")
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