Quote:
Originally Posted by rally
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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did you mean dslr or ccd for perfect linear response? I thought I read the ccd was good for a range then wasn't so linear.
the temp is recorded -Backyard EOS records the temp in the file name
eg here is a sub of mine
https://www.flickr.com/photos/803366...posted-public/
btw I have no photometry experience but eventually want to get into exoplanet detection.
also I would like to know what they mean by adding the channels together. I assume they stack each channel separate perhaps after using 'superpixel' type setting (as in DSS) for each channel.