valleyman Posted November 21, 2020 Share Posted November 21, 2020 When putting together a Set of Master Darks do you need to make them for each Telescope, each Camera or both? I have a Williams 81 and a SW 120 APO and intend to make Master Darks for then with the Camera Cooled to -20c. The exposer times will run from 30 secs to 300sec for each set. Pat Link to comment Share on other sites More sharing options...
geeklee Posted November 21, 2020 Share Posted November 21, 2020 2 minutes ago, valleyman said: each Camera Hi Pat, it's just for the camera(s). It's the camera behaviour you're capturing. You may come across posts where the astro camera isn't even on the scope, just cap on, face down on a table and maybe even some tin foil or other material round the end to be ultra sure! Link to comment Share on other sites More sharing options...
valleyman Posted November 21, 2020 Author Share Posted November 21, 2020 Thanks Lee Pat Link to comment Share on other sites More sharing options...
andrew s Posted November 21, 2020 Share Posted November 21, 2020 Just make sure there are no light leaks. I take mine in the dark. Regards Andrew Link to comment Share on other sites More sharing options...
david_taurus83 Posted November 21, 2020 Share Posted November 21, 2020 Best to take them with the camera off the scope and a metal cap on. You only need to do it once in a blue moon 👍 Link to comment Share on other sites More sharing options...
valleyman Posted November 21, 2020 Author Share Posted November 21, 2020 All noted😃 Link to comment Share on other sites More sharing options...
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