Quote:
Originally Posted by Startrek
Thanks Kevin,
Sorry to pick everyone’s brains and I know that each optical system is different but trying to gather enough data on the 2600MC so I’m not waisting to much time outside capturing and determining the most suitable calibration methods
Capture software ?
Method obtaining your Flats ( white t shirt or not ? ) no of Flats , exposure times and ADU count ?
Thanks
Martin
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To take flats I use a white t-shirt with the Esprit 100ED and the Newtonian. For the Esprit I use a laptop screen set to mid grey. For the Newtonian I use sky flats just before sunset (the 10" aperture is too big for the laptop screen). I use SGPro which allows you to set desired ADU (I choose 25000) and then uses a flats calibration wizard to work out the best exposure time for that ADU. I take 40 exposures per filter for the ASI1600mm mono or total 40 exposures for the ASI2600mc colour. The exposure time for the darks of course matches the exposure times for the subs and the exposure times for the flats.