Originally posted by blues_hawk One thing I wish they would fix in firmware is the liveview mirror motion. Silly thing drops the mirror just so it can raise it again. Shooting live mode should just lock it up as it's already there anyway!
Alas, this may not be fixable in firmware.
To make a camera as compact, lightweight, and simple as possible, some designers use a single motor to operate BOTH the shutter and the mirror. It's all very clever and compact but it means that the only way to cock and fire the shutter is to cycle the mirror.
And unless the sensor (and camera) have an electronic front curtain shutter, the only way to collect clean image data is to close the shutter, reset the sensor, and then cycle the shutter-mirror system.