Comments

Finally learning with the Celestron NexStar 8SE — 4 Comments

  1. Hi PolyWogg,

    Thank you so much for posting this information. Fortunately for me, I did not have to go through two years of frustration thanks to your post. It was more like two months. I was extremely frustrated not seeing deep sky objects and wondered as well if it just wasn’t possible with this telescope. To be sure, I planned to call Celestron tomorrow to ask about this, but I found your post first. I realized I had a serious alignment issue last evening when, after an hour of slewing around the sky with much disappointment, I called up Saturn, the first object viewed, for a final see before calling it a night. It aligned just fine earlier in the evening, but now it was so far off that I was shocked. I realized I had a lot to learn about alignment.

    Thanks again, and happy viewing.

    Sincerely,
    Paul

  2. I have both the 8 SE and Evolution-8 mounts. Most of the time, I get good results for alignment, but there are times when my alignment isn’t accurate. I’ve found good results in getting balance points on the OTA with camera and accessories installed using a pencil to balance the OTA on. Balance is important and has really improved performance on the SE. The Evolution mount mitigates balance issues as you can loosen the clutch and easily move to the balance point. Check backlash also helps with the performance of the scope tracking and goto accuracy. For alt-az mounts though having to constantly make adjustments on latitude and RA axis, it is amazing there’s any accuracy. I found your blog on CN and I found your documentation very interesting to read. Thank you for sharing!

    • I’m fortunate that I’m not often adding much more than the OTA, so the balance doesn’t seem too far out. I played with backlash a bit, but it seemed to make things worse, not better. 🙂

      Glad you enjoyed it!

      P.

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