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One of the nice things about modern electronic cameras like the A65 series 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, 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), and one of the few major moving parts in most other cameras is a lightweight mirror (its small size one of the advantages of the Alpha’s 1.5X crop factor) that flips up and down with each shot, but which remains stationary on the A65 models (unless you flip it up manually to clean the sensor).