Re: Calibrating for CCD/CMOS noise

[Herb Chong]

how noisy was the non-flashed part of the image without NR enabled? i would 
guess that the reflected light from clouds and so on would overwhelm the 
noise signal.

Herb...
----- Original Message ----- 
From: "Jostein" <[EMAIL PROTECTED]>
To: <pentax-discuss@pdml.net>
Sent: Monday, January 24, 2005 10:39 AM
Subject: Re: Calibrating for CCD/CMOS noise


Last summer I tried to photograph lightning flashes. With the dark-frame
subtraction (DFS) on, I lost half the thunderstorm. Of course, with the
precision of Murphy's Law, all the best lightnings happened during DFS. 
:-)