Taking photos of displays...

Paul Koning pkoning at equallogic.com
Mon Feb 28 13:51:33 CST 2005


>>>>> "Tom" == Tom Jennings <tomj at wps.com> writes:

 Tom> I've noticed my low-light digital photos look muddy too, I don't
 Tom> know what's goin on there, maybe someone here does.

That's noise in the sensor.  Photoshop may be able to help a bit with
that.  Cooling the sensor helps too, but that's probably not practical
for a camera.  (It's how astronomers use CCD sensors, I believe.  Some
vague memory says that liquid nitrogen works really well here.  It
certainly did in an image intensifier demo I saw at the local
astronomy club 30 years ago.)

	  paul



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