Seems to be a good choice because there are adapters available for almost every camera/lens type for reasonable cost. Even active mounts for Canon EF, etc.
Sony opens E-mount specifications. Seems we are on the safe side with using an E-mount adapter...
Full 4800 DPI scans available for download at: http://files.apertus.org/AXIOM-Beta/e-mount-scans.zip
Inside of our E-mount to EOS adapter sample
µC Board to translate from Sony E to Canon EOS
EOS contacts with springs on the PCB side
JL ... position of the EOS mount contact springs
We can replace this board with our own adapter board to connect to the cameras I/O's
Measured Bayonet Thickness: 1.3mm
P+S Technik offers with their IMS mount an open standard. For AXIOM Beta the adapters are too expensive, but for sure an option for AXIOM Gamma.
Is there a affordable really open standard mount out there?
please add it here...
Research links for the Canon EF-S Protocol