On Wed, 22 Feb 2006 13:25:30 -0500, "Steve"
wrote:

I hope this isn't a silly question. Is it impossible or too expensive to
turn the sensor on and off or something instead of a mechanical shutter?
Just wondering.

Steve


Another reason is that it protects the sensor from things like
accidental exposure to the sun, as even if the camera was off you
could accidently point it at the sun and damage teh sensor.