Taking photos of displays...

Ethan Dicks ethan.dicks at gmail.com
Tue Mar 1 22:22:56 CST 2005


On Tue, 1 Mar 2005 18:04:54 -0800 (PST), Tom Jennings <tomj at wps.com> wrote:
> Unlike film, you can'y simply open the shutter and integrate the
> image over time arbitrarily. CCDs are extremely noisy; silver
> nitrate (etc) it's at atomic scale.

I routinely have to manually (GIMP) remove noisy pixels from my 30+
second night shots.  It's a hazard with long exposure CCD shots.

My Olympus D-10 (4MP) has about 20-30 pixels that *scream* to full
blue, red, or white intensity from long exposure times.  Nothing to do
but mute each one down later.

-ethan



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