One of the big issues for many photographers when it comes to mirrorless cameras is keeping that sensor clean – particularly when cleaning lenses. With DSLRs it’s easy. When they’re not actively taking a shot, the shutter is closed up tight and the mirror’s flipped down. With mirrorless, on the other hand, the sensor is often completely exposed.
This was a problem with the Sony A9 II, but now a new v2.00 firmware update fixes that, by letting you close the shutter when turning off the camera. The new update also includes features to reduce flickering from artificial light sources, improved Remote Camera Tool functionality, improved Face/Eye Priority AF features and various other functions.