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Old 07-08-2015, 10:18 AM
rally
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Join Date: Sep 2007
Location: Australia
Posts: 896
Interesting find

This technique caught my eye.
Looks like the mount has a "drizzle" ability - they call it "PSF broadening" which occurs during a single sub exposure. Enlarges PSF by a factor of 1.5

They say that it ". . . improves photometric precision substantially"

I had trouble reconciling that the CCD had an almost perfect linear response in all 4 channels RGBG across the full dynamic range to saturation, but then they say that the antiblooming is built into the chip. So maybe the antiblooming is really antisaturation rather than a bleed off as saturation is approached ?

Does the Canon include CCD temperature into the metadata of each sub ?
Thats a great option for having darks in a DSLR
H - do you know ?
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