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Hello, and thank you! I have and own my Nikon D700. I like portability, but i am not shy to use larger, if it is needed. I like to have a similar functionality as my Nikon, if even possible? I am not shy of manual focus, heck, i actually used mf mainly on my D700, however, AF would be great in this situation, since i think i need to "focus" my attention on the act of capture photo's without the fancy digital camera abilities;spray shooting, multiple exposures; on board photo viewing, and so on! as far as Reflex or...Show more →
Heh, did you actually commit to anything there?
AF medium format is going to drive up the price quite a bit. Only the newer systems like the Contax 645, Mamiya AF and later, Rolleiflex 6008 AF, and so on, have autofocus, and the prices for these are all higher. Even then, they generally have just a single central AF point, and take time to focus. It won't be at all like focusing a 135 format DSLR. I would recommend against AF for medium format, unless the price is not an object.
The rangefinder system requires you to align two little images on top of each other, and typically doesn't focus so close, maybe 1m near limit or so. They are much lighter though. The Mamiya 7 or 7 II is the typical suggestion, but it isn't cheap, and some of the lenses are quite expensive. There are also some nice Fuji options here, but often (always?) fixed lens.
I guess apart from rangefinder vs. reflex, one of the first things you should decide is if you want a relatively compact camera (rangefinder or 645), or if size is not a big deal but you want larger negatives (6x6, 6x7), or even larger (6x8, 6x9).
To me, medium format is all about large negatives, so I prefer 6x6 and 6x7 negatives, where there is a lot of choice. 6x8 and 6x9 is much less common, and I am not so keen on the choices there.
If you want interchangeable lens 6x6 or 6x7, then the typical choices are the Hasselblad (maybe a 500 C/M), Mamiya RZ67 or RZ67 II, or Pentax 67 or 67 II (not Pentax 6x7 => no mirror lockup). The Pentax has earth-shattering mirror movement, but a classic SLR shape. The Hasselblad and the RZ have typical medium format modular construction, which can be nice, as you can carry two film backs and switch mid-film, between colour and B&W, or whatever. The Hasselblad is much smaller and really beautiful, but more expensive. The RZ is a great system, but much bulkier, and looks less nicely designed, in case you care. All these systems have some great lenses.