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Thread: Celestron CGEM II 1100HD vs. Sky-watcher Newtonian 10" Quattro Imaging Newtonian

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    Default Celestron CGEM II 1100HD vs. Sky-watcher Newtonian 10" Quattro Imaging Newtonian



    Greetings! I am new and still looking to purchase a telescope. I am interested in astrophotography and looking at the Celestron 1100HD and the Sky-watcher Newtonian 10" Quattro.

    Any suggestions between the two for both astrophotography and viewing?
    My concern with the Newtonian is being able to see through the eyepiece-I am only 5"1.

    Any other suggestions are also welcome.

    I am a NASA Social Tweep and a Board Trustee in an aeroscience museum.

  2. #2
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    Default Re: Celestron CGEM II 1100HD vs. Sky-watcher Newtonian 10" Quattro Imaging Newtonian

    Welcome to the forum! Both telescopes will be hard to use for astrophotography if you just starting up. Small APO refractor 70-100mm on Celestron AVX mount will be much easier set up to start AP.
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    Default Re: Celestron CGEM II 1100HD vs. Sky-watcher Newtonian 10" Quattro Imaging Newtonian

    The Sky Watcher will be much easier for AP. Shorter focal length and F ratio. As far as the eyepiece height, don't extend the tripod legs.


    Scott
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    Default Re: Celestron CGEM II 1100HD vs. Sky-watcher Newtonian 10" Quattro Imaging Newtonian

    Go have a look at this thread Buying my first telescope! Thinking about the Celestron CGEM DX 1100 HD 11 EDGE
    Good luck.
    Clear skies,
    Bob
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    Default Re: Celestron CGEM II 1100HD vs. Sky-watcher Newtonian 10" Quattro Imaging Newtonian

    Welcome. You are going to need a lot of mount for either one of those scopes if you want to do AP. As suggested above, a small APO will make starting imaging a lot easier. AP is not point and shoot.
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    Default Re: Celestron CGEM II 1100HD vs. Sky-watcher Newtonian 10" Quattro Imaging Newtonian

    Welcome to the forum. I agree with all the advice given. Big is not always better for AP, unless planets are your target, in which case bigger is better.
    Hondo, Bigzmey and 12richardk like this.
    Mark
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    Default Re: Celestron CGEM II 1100HD vs. Sky-watcher Newtonian 10" Quattro Imaging Newtonian

    It arrived intact. As Bigzmey stated it is a bit of a beast. The box was as big or bigger than the one for my AR152. It immediately became apparent that the scope that I am trying to "replicate" was actually F/10 rather than F/8. No matter. The F/10 tube was considerably longer at 60" rather than 45". Still, a significant size with most of its size air. Overall first impressions are quite positive with one caveat.

    Aesthetically the OTA is quite handsome. The aluminum walled construction is very solid. The spider vane and end hardware is very nice and again quite well built. The mirror has a center marked donut which is quite a relief. Collimation appears to be spot on pending a star test. The focuser is a 2" rack and pinion and is the one exception to complete satisfaction.

    My initial attempts to rack the focuser were hampered by the fact that the four screws on the R&P box lid were torqued all the way tightened. Loosening them helped but resulted in side to side slop. When I went in to remove the glue-grease with Ultra Lube I realized that there was no spring plate. I'm not sure whether one was supposed to be there but I may have an extra. Even if I don't I should be able to improve the action with strategically placed Teflon tape. I have never replaced a Newt focuser with an aftermarket but it may be in order down the road.

    This OTA was sold without a finder and the proprietary dovetail mounting plate but I had a spare on hand and fortunately the four mounting screws were present. The 8x50 GSO finder that I use for my AR127S serves double duty. The rings with handle makes the 14 pound weight quite manageable.

    First light should be this Saturday when the clouds clear. Of course the moon will be blazing away but won't hamper a star test.
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    Default Re: Celestron CGEM II 1100HD vs. Sky-watcher Newtonian 10" Quattro Imaging Newtonian

    Welcome to the forum as mentioned both scopes will need massive mounts especially if you have AP in mind , they will be great for planets , for other AP a quality Refractor 80 or 90 mm will be the better choice and cheaper
    Richard
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