First Light with ASI1600 on the Western Veil

[Budgie1]

After trying out a mono setup with the Atik 428EX camera earlier this year, I decided to get one with a larger sensor and manage to obtain the ASI1600MM Pro from a fellow SGL member about a month ago. Last night was my real first light with the camera, EFW and Baader 3.5nm Ha filter & Baader 4nm Oiii filter.

Between showers (it's the West Coast of Scotland ) I managed a couple of hours before the clouds moved in for the night. So this is 10x 300s Ha & 10x 300s Oiii at gain 139, offset 50 and -10°C, with Darks, Flats & Flat-Darks. Stacked & processed in PI. The scope is the WO Z73 III with the adjustable flattener.

Overall, for the short integration, I'm pleased with the results. There's a slight back focus issue, looking at the corners, which I've hopefully sorted by adding another 1.5mm to the adjustable flattener.

Comments welcomed and do the clicky thing for full resolution.  

Edited October 15, 2023 by Budgie1