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Old 29-10-2024, 03:14 PM
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PRejto (Peter)
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Join Date: Jan 2011
Location: Rylstone, NSW, Australia
Posts: 1,502
CMOS: Player One Poseidon M

I am completely new to this type of camera and I've barely had a chance to test it, however, my very early results are confusing.



Question: At gain zero, where the dynamic range is highest, how would one expect the CMOS chip to compare in sensitivity to a standard CCD chip, say the Sony 964 chip? More, less, equal?


My preliminary results suggest that my camera is less sensitive - and on the same target, same OTA, it appears that I need longer subs to get close to the CCD. If I increase the gain to 125 for sure the sensitivity increases but the well depth plunges, and even at this setting I would say the image is better with the Sony CCD.



So, what is all the "talk" about greater sensitivity and shorter exposures about? Or, is there something I'm not doing correctly, or is my camera possibly defective?


Thanks!
Peter
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