Resolution of B4 mount on UMP 12K

I am wondering if it is now possible to shoot 4K, or even 5 or 6K, with the B4 mount and lenses on the 12K UMP. On the 4.6K G1 and G2 only HD resolution was possible due to the cropping characteristics of the mount. But given the fact that on the same crop now almost 3x more pixels should be available, I would expect at least 4K resolution to be possible on the UMP 12K

Can anyone confirm this?

Thank you for your reply Kim, confirms my expectation.

The b4 adapter for the UMP features a 1.1x tele, the b4 adapter for the Ursa Broadcast uses a 1.5x extender to cover the 1” sensor. There is as yet no b4 adapter compatible with the 12k.

Good Luck

The 1.5x b4 is the factory supplied mount for the UB, I’d guess it’s only available through BM directly if at all.

Is your plan to adapt the b4 adapter to mft or replace the mft on camera with an intermediate flange?

Good Luck

Did someone manage to 3D print an adapter to connect the 1.5x B4 lens adapter to a mft?

The problem might that the B4 optional mount for the UMPG2 might not resolve 4K, whatever the target area it would cover on the 12K, since it was only intended to resolve HD.