Caldwell 1 NGC 188

 Posted: Apr 28th, 2026
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NGC
IC
HD
Technical Info
Telescope/Lens: Samyang 135 mm. f/2 ED
Camera: ZWO ASI533MC Pro
Mount: JUWEI 14
Guide Scope: Askar 32 f4
Guide Camera: ZWO ASI120MM Mini
Software: Siril, Lightroom
Accessories: EAF, EFW MINI, ASIAIR MINI, Dounstep Rings, Printed Rings
Exposure:
6 x 300" ISO/Gain: 100 - Optolong Lpro
Orange, Bortle 6 zone:
 Samara, Russia
 Apr 17th, 2026
30 m
15
Resolution: 2846x1601 px
Scale: 4783 KB
While processing, I thought about slightly shifting the focus point by adding a 0.5 spacer between the camera and the filter wheel — maybe the defocus in the channels will decrease a bit. At the same time, I slightly reworked the mounts in the rings; it was noticeable that one of them was pulling. I think the weather will allow me to test it.
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