Forgotten in its old age

by Aditya

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4
votes
2answers
424 views

What is this dead pixel problem really called?

On all photos from my last vacation I see this red point. It appears on in-camera JPGs as well as on RAW files. A see a red pixel in the same position on all pictures. How is this problem called? Is ...
5
votes
2answers
135 views

Why some pixels become hot pixels?

What is the physical explanation to hot pixels? What happens to the sensor when a good pixel become an hot pixel?
5
votes
3answers
2k views

How common are hot pixels on new cameras?

How common are hot pixels on new cameras?! I read that people may check up to 5 cameras at stores to actually find a perfect one, is this true? so how commons is this? what is the chance of getting a ...
7
votes
1answer
305 views

Are there bad effects of frequent pixel-mapping?

I read on two different sites that pixel mapping should be done once or twice a year. But sometimes I end up doing it once a month. Will it have adverse effect on the CMOS image sensor?