Hi Pro,
I just wanted to clarify a couple of items. CF digital backs can fit a variety of camera systems through the use of of i-adapters. The CFV is specific to the V system which includes the 200, 500, 900, Flex and Arc bodies.
The HxD, such as H3DII are integrated where each digital magazine is calibrated to a specific body to insure optimum performance.
The digital magazines on the H3D, H3DII can be removed for cleaning of the protective glass. There is a dual lock, the first in the traditional location on the left side of the body and the second located under the viewfinder, yes the viewfinder must be removed in order to access the secondary locking mechanism.
Paul Claesson
Hasselblad USA