The Sinar x3 does not exist any longer, but the Sinar x is basically the same.
1. the Sinar x is basically a Sinar p2 with little differences:
- no 0-click for the different movements
- the bearer is designed a little shorter
- the 4x5" frame on the rear standard cannot be screwed away like on the p2
- the reaer standard does not have a "metering frame" as the p2 (but this is of interest only if using film and wishing to meter in the film plane)
- the horizontal shift know is red
Other than these, the design, features and movements are excatly the same as on the Sinar p2 4x5" camera.
2. The Sinar m camera does accept only Sinarbacks. It can be used as an AF medium format camera, with either Sinaron Zeiss Digital AF lenses, or with Hasselblad V lenses with the dedicated mirror module, and there exists as well the Sinaron Digital 28mm/4.5 HR lens for this camera.
The same Sinar m body can as well be used as a shutter and mounted directly on the Sinar p2 (on the Sinar x as well if one knows how to hold a screw driver).
I hope this answers.
For now I decided to stick with Copal shutters, since I don't want to add anymore clutter around my shooting area. I feel that the convenience of controlling the lens and shutter via software is not worth the extra clunkiness or investment.
Can you tell me a little bit about the Sinar X3 and the M camera? Will it work with other backs, aside from sinar?
It would be nice to have a "DSLR-like" view camera...