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Old February 23rd 06, 02:29 AM posted to
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Default Why do digital cameras need shutters?

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.

In addition to the other replies I believe the camera manufacturers also
use the shutter as a black reference to measure sensor native noise.

The Nikon D70 "electronically" shutter flash syncs up to 1/500 which is
on the "closing" side of the cycle, and I think that should be standard
on all high end DSLR's.


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