Tagged Questions
6
votes
4answers
444 views
Has low-light ISO performance really improved over the past 3-4 years?
I have a Canon 40D and I always shoot RAW. I am overall pleased with the 40D except for its low-light performance. Anything at or above ISO 800 is unusable for my taste. Just to solve this problem I ...
10
votes
3answers
840 views
Why aren't there any cooled CCD sensors to reduce noise?
Sensor cooling is a common technology to get less noise. Why isn't it available on high-end D-SLRs ?
(see http://www.andor.com/scientific_cameras/ikon-m_cooled_ccd/ for an extreme example)
I'm not ...
11
votes
1answer
314 views
What is the statistical distribution of sensor noise?
Sensor noise is a random variation in pixel values, but what kind of random is it? Does it follow a normal distribution, one of the gamma distributions, or something funky like an F distribution?
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