bartman wrote:I used a Leica-R 50mm with a ISCORAMA on top
attached to a canon 5Dmk2 via an adapter = Vignetting!
What's going to stop the BM 4k vignetting?
How much of the frame Vignettes?
Don't forget this is a Super 35mm frame on the BMPC (Super 16 on the BMPCC and non-standard on the BMCC) so if there's slight vignetting on the 5D which is full frame then there may not be any on the BMPC.
If you have the lens and an EF adapter then possibly find a 7D, EF Scarlet or EF Epic set to 4k. Any of these should give a good idea of the lenses optical characteristics on the BMPC.
Jason Hinkle wrote:Any lens meant for 35mm film should cover the sensor. But the EF mount is not as easy to use with converters due to the flange focal distance. It's kinda an odd/unfortunate choice of mount for the 4K version. I think a Nikon mount would have been better, then we could use a lot of adapters easily.
I believe a PL mount will follow (being aware of 2nd mount time issues on the BMCC), between the PL and the EF you get most of the cine lenses designed to cover super 35mm.