Padraic M Posted May 30, 2021 Share Posted May 30, 2021 First light both for a new setup using a C8 SCT and an OAG, and first time imaging a globular cluster. Clear skies in B2, but with a lot of moisture in the air. 10x 150s each of B,G,R + superluminance. 1hr 15min total. Celestron C8 with 0.63x FF/FR on a HEQ5 Pro - 1350mm FL. Celestron SCT focus motor with NINA autofocus for each filter. Imaging: ASI160MM Pro @ 20c. Baader RGB filters. Guiding: OVL OAG, ASI290MM Mini. Software: NINA, PHD2, SharpCap PA. AstroPixelProcessor, Gimp. 30x darks, flats, dark flats. I need to take new flats of the green channel as I haven't calibrated out that great big donut. Also, stars are a bit clunky, and the shapes in the corners are a bit beany. Is this what can be expected from a C8 with FF, or do I need to collimate? 6 Quote Link to comment Share on other sites More sharing options...
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