Quote:
Originally Posted by bluescope
I tweaked it a bit just to subdue the red flaring in the centre and the greenish noise in the background ... hope you don't mind.

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Thanks Steve. Yeah you're right. I'm having a bit of trouble shooting flats with the C11 at the moment. I ordered an A3 EL-sheet. For some reason the 9000ADU level that worked for my 5" overcompensate the flat fielding on the C11. Weird. I have to work out some proper levels of exposure. I think using myA4 EL-sheet doesn't help either

I also need to rotate the guider so the prism doesn't obstruct the CCD (top right corner) Back to the drawing board