(IC 1805 / IC 1848)

 Posted: Aug 30th, 2026
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NGC
IC
HD
Technical Info
Telescope/Lens: Samyang 135 mm. f/2 ED
Camera: ZWO ASI533MC Pro
Mount: EQ6R-PRO
Software: Asiair
Accessories: Optolong L-Enhance
Exposure:
216 x 300" ISO/Gain: 102
Red, Bortle 7 zone:
 Nijniy Novgorod, Russia
18 h 0 m
131
Resolution: 2796x2910 px
Scale: 2197 KB
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Comments

Greetings, at what aperture are you shooting? Quite pronounced coma at the edges on the stars.
13 Sep, 2026 Reply
Alexey Replied to Nickolay
Good afternoon, I shot at 2.8.
13 Sep, 2026 Reply
Nickolay Replied to Alexey
I was recently advised to stop down to 3.2, and under light pollution conditions to 4.0. I haven't tested it myself yet. Mine also has coma.
13 Sep, 2026 Reply
Alexey Replied to Nickolay
Got it, I'll keep that in mind) The coma bothered me too.
13 Sep, 2026 Reply

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