I'm usng a132c Imacon back on a Hasselblad ELX with 40,80,100 and 180 CF lenses. It works very well - great images very sharp with all lenses - even the 40mm. I used this kit for years with film with success and it was great to resurrect it after shooting 35mm digital SLR's for the last few years.
I read a few reports about the 40mm being not so sharp with digital and perhaps it isn't as crisp as the other lenses but it works extremely well for me apart from a little bit of CA ( which I can photoshop away with ease).
The one thing I think the H1 or two might have in its favour is the autofocus and electronic focus confirmation as I find the imacon back , and digital in general , very unforgiving if the focus is not set exactly at the point intended. I'm fortunately not limited with the 132c as it is adaptable to other systems,part of my reason for purchasing it - kind of future proofing
As someone else said , you need to wary of mirror slap under 125th sec but it works perfectly in the studio with flash. I usually lock the mirror up before the main exposure anyway.
Perhaps a little large for location work but I got some very nice images shooting on the run handheld the other day.
I have thought about getting a non motor body for a lighter weight setup but then I thought about that with film too and never seem to get around to it.
I've been offered a very good deal on a Phase One P30 digital back for a Hass V. (I'd prefer Contax but beggars can't be choosers). I am very tempted to trade in the Canon and move back up to medium format.
I used to use a 2000FC Hass for years, which I liked because of the faster lenses but I understand that it can't be made to work with the P backs. Is that correct?
So it seems that I am limited to the 5xx series, which has slower glass but faster flash sync.
There have been many 500 series bodies made over the years. Which is best for the digital back? Do any of them offer metering and auto exposure? I have seen the metered prism finders but they seem to offer a TTL reading only and the rest has to be changed manually.
Manual everything is fine with me on the set where everything is controlled, but I'd like to be able to take the camera out for street shots and that sort of thing.
So what are the ins and outs of the various 5xx bodies for digital use?