Hi Rob, On Tue, 10 Feb 2004 13:36:36 +1000, Rob Studdert wrote:
>I'm interested in making an informal survey of the noise performance of our >*ist D cameras. Anyone with access to a PC who has permission to run the little >test app at http://www.starzen.com/imaging/deadpixeltest.htm can participate. > Good idea! I will run that test later and mail you my results. However, I happened to run a less scientific test yesterday, just to see if there are big problems with my two week old *ISTD :-) I ran a series of long exposures at 200 and 800 ISO settings, and counted the hot pixels at 100% magnification on the screen. All exposures with cap on of course, and NR switched off. Exposure ISO-200 ISO-800 1/8 0 2 1/2 1 3 2 3 10 8 8 50 30 50 > 200 Actually, in that last shot there are probably thousands of 'warm' pixels too, the screen really looked like a coloured version of a clear sky at night :-) I did not do a full test with NR on, but a 30 second exposure at 200 ISO did not show any hot pixels. >From what I have read on the list in the past this is a fairly typical outcome, correct ? Regards, JvW ------------------------------------------------------------------ Jan van Wijk; http://www.dfsee.com/gallery
