I’ve updated my review of the Pentax 645D in Medium Format with more examples from the 75mm f/2.8. It’s just amazing how well it does with 10-30 second exposures— super clean. I’ve also added a few notes on the focusing page.
I’ve also added a Conclusions page detailing how I feel about the camera: best medium format camera yet, in terms of usability. If cash allowed, I’d buy one, but the tax man has better uses for my hard-earned cash. A friend of mine was kind enough to loan me the 645D for testing, and I’ll likely add more coverage to my review over the holidays. I’ve sent back the 55mm f/2.8, so I’m using it at present with the 75/2.8, but I’d be interested in borrowing a 120mm f/4.