Oh I don't know about this.
But first, THANK YOU Onasj!
I've had this in the back of my mind for some time, but I've never actually tried it. And the reason is that Cambo has a Mamiya 645 lens mount for the Cambo Actus view camera, but the newer Phase/Schneider versions don't fit on it. "Different tolerances" etc, is what I was told, so I put it out of my mind. You can't control the aperture anyway, so I didn't think much further on it. But I have been assuming this with the Alpa Mamiya lens adapter as well, and clearly that is in error as you can see from the image below!
So yes, as Doug mentions, you can stick the aperture on virtually any electronic camera just by selecting Depth of Field Preview then shutting the camera down while holding that. I've done this often as I shoot some extreme macro subject matter with extension rings. So yes, if you commonly shoot at f/11, you could stick that aperture. The downside is that you won't be able to focus wide open and easily stop down, that option would be too cumbersome, you'll have to ballpark the focus point to a degree. But for a Schneider 35mm Blue Ring lens shooting a scenic view, your focus is probably not going to show as being off by much, even if it is.
So I mounted the Schneider 35mm lens onto our Alpa 12 Plus and shifted to see how far I could get, and as I expected, I could shift to about 12mm before I started seeing edge of image circle. I say "as I expected" because many if not all 645 lenses have about a 70mm image circle. Now I have
not tested the results when shifted - that's another matter that remains to be seen.
But again, thank you Onasj for doing what I had thought about but never got around to - I think it has some possibilities for people.
I don't have the Mamiya lens Adapter for Alpa in stock, but can order, would probably arrive within about a week or so.
Steve Hendrix/CI
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