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auriga

23 Sep 2011 22:47



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@achy1978 eu am citit pana acum ca nu conteaza temperatura la bias. sau conteaza putin: exemple:
http://deepskystacker.free.fr/english/faq.htm:
It's very easy to create bias/offset frames: just take the shortest possible exposure (it may be 1/4000s or 1/8000s depending on your camera) in the dark by covering the lens.
The bias frames must be create with the ISO speed of the light frames. The temperature is not important.

la fel spun si cei de la cyanogen. The bias for a particular camera is generally constant over a substantial period of time. This means that you can take bias frames just once, and use them on all your images for many months to come. Note that some cameras may have a small bias dependency on temperature. Small bias offsets are not important of themselves, but they can degrade the effectiveness of the flat-fielding calibration.

