If one was to use Pan/Tilt to take LiveStack images for a region that is offset centred, and are using Pre-Processing with Subtract Darks and Apply Flats, does one need to use Dark and Flats that were created using the same pan/tilt settings (which would be fairly impractical to plan ahead for) or can the pre-processing automatically select the required bit of dark and flat from larger sized full frame files for its needs ?
(I'm used to Reduction of CCD Images in CCDSoft where a full frame Flats/Darks can be used to reduce a sub-frame lights, provided there they have the same binning, the subframe has the necessary position info (equivalent to its pan & tilt in its fits header) )
David
Dark & Flat Frames for Sub-Frame Images that use Pan/Tilt
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Re: Dark & Flat Frames for Sub-Frame Images that use Pan/Tilt
Hi,
Right now, you have to use exactly the same pan and tilt settings across the flat/dark/light frames for everything to work properly. There's a feature request thread somewhere on here for the sort of feature that you're describing where you take full frame dark and flat images and SharpCap deals with the rest – it's definitely on my list of things to do in the future, but it hasn't got close to the top of the list yet.
Cheers, Robin
Right now, you have to use exactly the same pan and tilt settings across the flat/dark/light frames for everything to work properly. There's a feature request thread somewhere on here for the sort of feature that you're describing where you take full frame dark and flat images and SharpCap deals with the rest – it's definitely on my list of things to do in the future, but it hasn't got close to the top of the list yet.
Cheers, Robin