Helix Nebula (NGC 7293)

 Posted: Oct 2nd, 2022
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NGC
IC
HD
Technical Info
Telescope/Lens: Williams Optics Zenithstar 81 APO
Camera: ZWO ASI294MC Pro (Cool) / ZWO ASI533MM Pro (Cool)
Mount: HEQ5PRO SynScan GoTo
Guide Scope: SVBONY 60/240
Guide Camera: ZWO ASI 290MM mini
Software: PixInsight
Accessories: William Optics 0.8x Reducer/Flattener
Exposure:
24 x 300" ISO/Gain: 100 - Optolong H-Alpha 7nm 2"
13 x 300" ISO/Gain: 120 - Optolong L-eXtreme 2"
23 x 300" ISO/Gain: 100 - SVBony OIII 7nm 2"
Orange zoneLight Pollution:
 Stanica Dinskaya, Russia
 Aug 30th, 2022
5 h 0 m
1756
Resolution: 2667x1877 px
Scale: 21355 KB
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Comments

Nice photo! I see you have both color cameras in use. How do they perform with narrowband filters? And in your opinion, which camera shows better performance? I'm currently deciding between the 294 and 533, leaning towards the 294 for now.
31 Oct, 2022 Reply
Astrodinsk Replied to Ivvan22
Thanks, I have the 294 color and 533 mono. Personally, I like the 533 more for many reasons, but the field of view is a bit small and the sensor is square—I'm currently using both. With the 294, there are issues with gradients, both on the color version and the narrowband version. There's less hassle in processing when working with the 533; a friend had the 533 color and didn't have any problems at all—he only switched it because of the square sensor.
31 Oct, 2022 Reply
Ivvan22 Replied to Astrodinsk
Exactly, 533 mono... I've looked and looked. It's the square sensor that puts me off the most. Thanks for the answer.
31 Oct, 2022 Reply
Astrodinsk Replied to Ivvan22
The next step up in camera class is the 2600MC. It offers a wide field of view and avoids the issues of the 294. While many people do shoot with the 294, personally, I don't find it as convenient.
31 Oct, 2022 Reply
Ivvan22 Replied to Astrodinsk
The price of 2600 is, to put it mildly, beyond acceptable.
31 Oct, 2022 Reply
Beautiful photo, you can see the effort put into it. Respect!
1 Nov, 2022 Reply
Astrodinsk Replied to Astrobanya
Thank you, yes, I had to work on it quite a bit—it was very low in the sky.
1 Nov, 2022 Reply

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