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Rho Ophiuchi nebula and IC4603
73 x 130 sec OSC subs from a ASI294MC pro
AstroTech AT72EDII with a Williams Optics 73A flattener.
Its the first time I've used the AT72 and the WO flattener and after adjusting the backfocus, I was stunned by the nice round stars in the corners. I never could get this with my Orion flattener.
Also I'm starting to get comfortable with pixinsight and processing nebulas, at last.
The images is a full frame, no cropping, and I've included the pixinsight AberrationInspector mosaic (just because I'm so happy the WO flattener worked.)
Chris
I had to go to 25% quality when converting to jpg to get the file size down so, annoyingly, there is quite a bit of posterization of the image. Is there any way around this?
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