NGC 1499 California

 Posted: Sep 1st, 2025
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Technical Info
Telescope/Lens: Askar SQA55
Camera: ZWO ASI533MC Pro
Mount: JUWEI 14
Guide Scope: Asi120mm mini
Guide Camera: Sv105
Software: siril, graXpert, gimp
Exposure:
14 x 600" ISO/Gain: 100 - L-ultimate
White zoneLight Pollution:
 G Moskva, Russia
 Sep 1st, 2025
2 h 20 m
1183
Resolution: 3007x2891 px
Scale: 1938 KB
Updated
  7 Sep, 2025
  2 h 20 m
Current photo
  1 Sep, 2025
  2 h 20 m
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Comments

Hello. Your California Nebula should have fit completely at a focal length of 264mm, I think. Mine fit at 360mm. The 533 is indeed a bit smaller than the 294, but probably not by that much.
1 Sep, 2025 Reply
Dmitriy Korotkih Replied to Oeswww
The 294 sensor is wider than the 533, mine is 11*11mm.
1 Sep, 2025 Reply
Dmitriy Korotkih Replied to Oeswww
And tell me, how is the camera? I'm thinking of getting the 2600, but I'm also considering the 294mm, which is simply cheaper. I've heard about the issues with the 294.
1 Sep, 2025 Reply
Oeswww Replied to Dmitriy Korotkih
Well, with my wide part being 19mm, that's almost twice as much. I could have gotten a shot like that with a one-meter Newtonian.
1 Sep, 2025 Reply
Oeswww Replied to Dmitriy Korotkih
There's no better camera in terms of value for money. If the 2600 is considered top-tier, then the 294 is near-top. And calibration frames solve most issues. It does still show banding at short exposures, of course. For example, if you shoot M13 with a 200mm Newtonian at, say, 10-second exposures, there will be banding. But you could capture stars at 10 seconds and, say, the background at 60 seconds. Blend them together and voilà! But that's just my theory. I have an unprocessed M13 sitting here. Maybe I'll find an easier way.
1 Sep, 2025 Reply

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