Quote:
Originally Posted by lazjen
That's interesting information. Is there a way to work out the details for DSLR cameras as well (it seemed CCD centric for the Starizona articles)?
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It is almost impossible to have a guide for DSLR's as the thermal noise varies so much with ambient temperature.
I used to have a Canon 5DH and a 300mm lens at F3.6 which I cooled with a Peltier fridge to -12C. This reduced the thermal noise considerably but not quite enough to image dim objects such as the Vela Super Nova remnant or the dim nebulosity in the LMC and SMC in NB as clearly as I wanted in a reasonable time. The Bayer filter array is the major reason for this.
Bert