|
Thanks Mark. I understand the Bayer matrix, and now that you explain it the effect of binning is really very obvious. There is no way around that as far as I can tell.
I am happy to forego FOV for image quality if it comes to that. As I remember the KAI 4020 has greater well depth and is more sensitive than its 8mp counterparts.
Given that 3 - 4 minutes is optimal exposure time with a DSLR CMOS under my skies, this would be within any practical limit of an OSC from what I understand, avoiding blooming. Would this be true with anti blooming switched off.
Having cleared up these grey areas, I think it comes down to a sensible decision balancing needs and camera attributes/limitations. Given that the difference in relative QE between the chips mentioned is only a few % - I'm not sure whether that is significant in practical terms - the remaining considerations seem to be resolution and noise.
|