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Thanks Jase.
47 Tuc wasn't the primary imaging target but thought it was well worth a shot for a quick look at its performance on both a bright object and a galaxy which is a risk with smaller aperture. Especially after 3 nights of waiting for some clear skies!
I am having a bit of trouble with flats with both the U16M and the ML8300.
It seems sometimes I am better off without flats.
I'll have to review how I am doing them - basically dusk flats, at least 3 seconds (with a mechanical shutter it needs to be at least 3 seconds or the shutter shows up in the flat). Median combine usually 3 flats and subtract a bias. I go for about 20,000 ADU or thereabouts.
I am removing the MMOAG from the imaging train of the BRC as its prism seemed to influence flats negatively. Will know when I use it again next.
Cheers,
Greg.
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