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  1. #1
    DakotaWoll's Avatar
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    Default Hyperstar or Autoguider?



    This is a question I have been considering the answer to for about a month now. I am just dabbling my feet in astrophotography and absolutely love it, but with my setup I am somewhat limited. I am currently working with a Celestron 1100 EdgeHD on a CGEM mount, and I was able to get 45 second exposures with drift-alignment alone, so I am confident in the mounts ability with this amount of weight. The question is whether or not I should first buy an autoguider for longer exposure shots, but still at 2800mm focal length and f/2, a combination which inhibits me from imaging MANY objects, but also opens the door for quite a bunch too. My other option is to get a hyperstar lens for my telescope, which I could easily take 60second+ images with drift alignment alone due to the 560mm focal length reduction. As of now, I am leaning towards the Hyperstar (being that I can really only get one before the end of this year, financially as a 17 year old) but I am truly a beginner in this sector of the hobby and was wondering if I could get some advice from the experienced members of this forum. I really appreciate anything anyone has to say! I am just looking for some advice. Thanks a lot guys! I really appreciate all the help I have received on the forum
    Celestron 1100 Edge HD OTA
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  2. #2
    KathyNS's Avatar
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    Default

    If it were me, I would get the hyperstar. You already know you can get a tolerably good polar alignment. Reducing your focal length will make it that much more usable, allowing longer exposures. And opening up the focal ratio to f/2 will make a huge difference to your exposure times, so you can take better advantage of that alignment.

    An autoguider will let you take longer exposures without star trails, but you still have to take the long exposures.

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  3. #3
    kwalker's Avatar
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    Default

    I'm with Keith on the Hyperstar.
    But why not do both
    Ken

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    8" Newtonian with EV2NM moterized focuser,Baader MPCC , WO FLT98 ddg ,WO Flat4 reducer flatener ,Celestron CGEM mount ,Celestron USA built CGE mount ,Orion mini guider pkg ,Canon EOS Rebel xs ,the newEOS 60Da,and boxes of eyepieces collecting dust

  4. #4
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    Default

    I went thru this dilemma a few months back - I purchased my scope used from Starizona and was informed it already had the modified secondary to allow Hyperstar so that was a plus, but in the end decided to go the more traditional route for now. Mainly I was limited to a small range of cameras that would work with the C6 OTA (and at prices that were out of my budget at the time), but since you have an 11" OTA it is possible for you to attach a DSLR so that eliminates one more purchase. In the end it comes down to getting maximum performance out of what you have, and the Hyperstar option definitely opens things up quite a bit.
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  5. #5
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    Default

    Good question, I can make an argument for both but I really think it comes down to what objects you'd like to image.

    Either setup will allow you to capture great photos of very different targets, each with its own challenges.

    Do you want to image smaller objects such as galaxies and planetary nebula? If so and autoguider will allow you to take long exposures of these objects.

    Do you want to image larger widefield objects such as M31 or the Orion complex then Hyperstar will probably suit you better.

    It really comes down to what you want to image imo, they both have their advantages and disadvantages.
    Dave
    Celestron 11" EdgeHD
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  6. #6
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    Default

    The appeal of galaxies is huge! Which would be the more traditional guider route. I would love to hear those arguments for both, haha. Also, if I were to get the guider, would it make a big difference in quality between the Orion mini autoguider package (9x50 finderscope and ssag) and the ST80 with ssag package? Weight is a bit of a concern with my already "overloaded" mount (by most standards), so I'm not sure if there would be a big difference in performance...
    Celestron 1100 Edge HD OTA
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  7. #7
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    Default

    I have a CGEM 800 myself. I purchased a QHY5 autoguider and it works very well with my CGEM. Hyperstar is a great system but expensive. It does require a more critical focus and can be much more work to use than more conventional systems. Your CGEM is a good mount but if you want to maximize its potential, I would recommend getting your mount "hyper-tuned". You can send it away or if your handy with tools you can purchase a tune up kit (with instructional video) from Deep Space Products (Deep Space Products, Telescopes, Telescope Accessories, Custom Telescope Services, ADM Products, Deep Space Coolers, Do-It-Yours)
    I haven't done it yet but from all I've been able to find out from others who have gone this route, its the way to go. Hyper tune, autoguider and Hyperstar. It all works together and improves the final result (not to mention making the process a lot easier as well). Clear skies!

 

 

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