David Busch's Sony Alpha a7C Guide to Digital Photography

Troubleshooting and Prevention

14

One of the nice things about modern mirrorless cameras like the Sony a7C is that they have fewer mechanical moving parts to fail, so they are less likely to “wear out.” No film transport mechanism, no wind lever or motor drive, and no complicated mechanical linkages from camera to lens to physically stop down the lens aperture. Instead, tiny, reliable motors are built into each lens (and you lose the use of only that lens should something fail).

Of course, the camera also has a moving physical shutter (which augments the electronic shutter “curtains”). It can fail, but the shutter is built rugged enough that you can expect it to last several hundred thousand shutter cycles or more. Unless you’re shooting ...