C2020 V2 (ZTF)
Photo description / processing
The 3M-6A 6.3/500 lens was used without a corrector.
I cropped the frame in Stellarium, and the resulting focal length was around 350mm.
So the relative aperture is roughly 4.4/350. I think that’s correct.
Technical information
- Telescope/Lens
- ZM-6A 500mm f/6.3 Lens
- Camera
- ZWO ASI224MC
- Mount
- iOptron GEM28
- Software
- DeepSkyStacker, Siril
- Location
- Касимов, Россия
- Date taken
Exposure
- 65 × 30″ · ISO/Gain: 245 ·
Total exposure: 33 m
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