- Posts: 470
- Joined: Sat Feb 03, 2018 2:42 pm
- Real Name: Benno Zwanenburg
Anyone having this problem? My unit is replaced by a new one because of another problem but still the auto iris doesn't work with B4 lenses.
The auto iris on the body of the UMP is disabled, also the touchscreen iris is disabled.
When I press and hold the auto iris on my B4 lens then the iris jumps always to f16 and the display 'says' f1.9. When I release the auto iris button the display 'says' f16 and the iris also keeps at f16.
With EF lenses this works just fine. Is it a bug in the camera or firmware???