Quote:
Originally Posted by RickS
With option 3 are you assuming an improvement in read noise from hardware binning? If you're sky limited then software binning should work nearly as well and you'd be able to add the RGB data in to luminance..
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Very good point, Rick. I actually tried this once and the numbers indicated the SNR was better in the software binned version. I wasn't sure how to measure the "sharpness" of the images though, so it could just be that the software binned version lost some edge contrast thus reducing the variance?
Quote:
Originally Posted by Shiraz
let us know how you get on. If using PI, You may be able to fix the artefacts around 2x2 stars by using something simple (eg bilinear) as the registration interpolation function or changing the clamping threshold (if sticking with the default).
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There's a thought. I've messed around a bit with different integration algorithms/parameters, but I never thought to look to registration as a solution for that. Thanks Ray, I'll have to dig into that.