Olympus has announced a firmware update for the 12-40 PRO lens.
– Stability of lens aperture when shooting videos has been improved.
– Enhanced stability of sequential shooting when using the E-M1 Mark II.
Info is here, and instructions to complete the firmware update.
Basic method is connect the lens to your camera, connect the camera to your computer, launch the Olympus updater and hit update on your lens selection on the screen! Quick and easy. If you have never done it, I recommend following the directions on the Olympus Firmware update instructions site!
Thanks having trouble with 12-40 Pro lens will not work on my EM1 or EM10 all my other Olympus lens work OK
Hi got the same problem now,is it working for you now?