QHY163M fine tuning side effects

Well, nothing really happened fortunately 🙂  “Side effects” here means only one more target that I was able to picture last night, when I have been adjusting flattener distance. It looks that testing phase is close to the end, time for some “real work”. For narrowband tests I have chosen Cygnus Wall (part of NGC7000 nebula) – it is bright (at least in hydrogen band) and was conveniently placed last night. I collected 60 minutes of H alpha, the same amount of Oiii band, and 3×16 minutes of RGB signal, conditions very modest and exposure time as well. So here it comes:

Cygnus Wall, 6x10 minutes Ha
Cygnus Wall, 6×10 minutes Ha
Cygnus Wall, 6x10 minutes Ha, 6x10 minutes Oiii, 3x8x2 minutes RGB
Cygnus Wall, 6×10 minutes Ha, 6×10 minutes Oiii, 3x8x2 minutes RGB

Other components as usual: TS Photoline 130mm refractor with 0.79x reducer sitting on EQ6 mount.

Clear skies!

4 thoughts on “QHY163M fine tuning side effects

  1. Hi, the images are awesome!!

    I would like to buy this camera; but I want to know if there is a problem with vignetting with 1,25″ filters.

    Thanks a lot,

    Regards,

    1. Hello Marcelo,

      Thanks 🙂 For filters – it depends on distance between filter and sensor and the focal ratio of telescope. With regular QHY filter wheel you will start to have slight vignetting with 1.25″ filters with telescopes f/6 and faster. Then for f/5 and faster vignetting becomes more visible. But there is a solution from QHY that can make distance between camera and filters shorter http://qhyccd.com/bbs/index.php?topic=5659.0 . These adapters should be available soon to buy, and then you can use 1.25 filters also with faster scopes.

      Cheers
      Lucas

  2. Hi Lucas, I’m going to use the camera in a Skywatcher ED80 (80/600), f/7.5.

    So, according to your opinion, I wouldn’t have vignetting.

    Good news!!

    Thank you very much for your help!!

    1. If you use flattener without reduction, so you keep f/7.5 no vignetting should occur.

      Clear skies!
      Lucas

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