+Stu Posted July 15, 2023 Share Posted July 15, 2023 Hi folks. Now I'm set up with a focuser with a rotator and measurements on the tube and a camera with set point cooling, I was wondering about a calibration frame library as I have to pack everything away after each session. Say I have the rotator at zero degrees and the focuser out to 46mm. As long as I line up the reducer in the focuser when attaching the camera and set the cam to the same temperature every time, can I create a library for that configuration? Link to comment Share on other sites More sharing options...
Bottletopburly Posted July 15, 2023 Share Posted July 15, 2023 (edited) Roatator makes no difference stu , take camera off cover camera up put cover over nosepiece make sure camera vents can breathe no light leaks whatsoever, take a darks library 45 of each or whatever number , also a dark flats library so if you know how long flats you take are do that too , so for my Newtonian using a duo for an Adu of 25k I use 7.5 sec for no filter other than uv filter I take about 1.5 or one third your histogram so on night only lights and flats , mind you won’t need bias if using dark flats , one or the other not both redo every 6 months . Edited July 15, 2023 by Bottletopburly +Stu 1 Link to comment Share on other sites More sharing options...
+Stu Posted July 15, 2023 Author Share Posted July 15, 2023 @Bottletopburly Thanks. I did have a go at doing some flats but wasn't having much luck, I don't think it was dark enough around me. Am I right to assume that mine would be longer, being 80mm aperture? Link to comment Share on other sites More sharing options...
Bottletopburly Posted July 15, 2023 Share Posted July 15, 2023 34 minutes ago, Stu said: @Bottletopburly Thanks. I did have a go at doing some flats but wasn't having much luck, I don't think it was dark enough around me. Am I right to assume that mine would be longer, being 80mm aperture? No it depends on your light panel intensity Link to comment Share on other sites More sharing options...
+Stu Posted July 15, 2023 Author Share Posted July 15, 2023 9 minutes ago, Bottletopburly said: No it depends on your light panel intensity Ok. Some experimentation needed then, perfect weather for it 🌧️🌧️🌧️ Link to comment Share on other sites More sharing options...
Bob Dobber Posted July 15, 2023 Share Posted July 15, 2023 Darks I reuse for literally months or even (shhhh!) over a year... Flats I re-use until such time I break apart any part of the imaging train - but if I had a rotator I think I'd be doing them every session just in case of minute rotations. +Stu and +Ibbo 2 Link to comment Share on other sites More sharing options...
+Stu Posted July 15, 2023 Author Share Posted July 15, 2023 7 minutes ago, Bob Dobber said: Darks I reuse for literally months or even (shhhh!) over a year... 😯 At least having some darks will make imagining sessions simpler. Link to comment Share on other sites More sharing options...
Bottletopburly Posted July 15, 2023 Share Posted July 15, 2023 1 hour ago, Stu said: 😯 At least having some darks will make imagining sessions simpler. The beauty of a cooled camera +Stu 1 Link to comment Share on other sites More sharing options...
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