I'd like to use the fujinon 18-55mm MK lens with the ursa mini pro with the B4 mount, but have been told this B4 lens is not compatible with the mount? Is this correct? If so, why?
Fujinon MK zooms are E-Mount or X-Mount. Duclos can make them FZ mount as well. They are made for S35 sensors, not the 2/3" image circle the B4 mount requires.
The only way I see it possible to use the MK zooms on the UMP is if someone manufactures a dumb E Mount for the camera.