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Thread: Help with eyepiece decision

  1. #1
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    Default Help with eyepiece decision



    I would like a complete set of one brand of eyepieces. Right now I use mostly Meade and Celestron and have always liked Celestron products, never have had a problem.
    I am thinking of getting the set of Celestron X-Cel LX and then I notice the Agena ED set, they are a little cheaper than Celestron, but I have never owned one. They are both 60 degree FOV and 1.25 barrels.
    The scopes I would be using them in are my C5+ that is already set up for 1.25, but my refractor 80mm, f/5 has been modded for 2" focuser with a GSO 2" quartz diagonal. I use a 1.25" adapter with that. I am thinking of getting the Baader 2" clicklock visual back for my C5 and using the 2" diagonal on that one also, as it is an exceptional view even with 1.25 eyepieces.

    My question is , in your honest opinion, which would be the better set? I have read all the reviews and owners of both seem to really like them. I already have the X-Cel 2x barlow and love it.
    Your opinions will be greatly appreciated. 2" eyepieces are out of my price range.

    Thanks, Mike

  2. #2
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    Default Re: Help with eyepiece decision

    The only problem with this is that not every eyepiece in a branded lineup may work well in your telescopes.
    This is why you will find most astronomers have multiple brands in the eyepiece kit.
    Both sets that you mention have a good reputation.
    SpyderwerX likes this.
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    Default Re: Help with eyepiece decision

    Quote Originally Posted by Gabby76 View Post
    The only problem with this is that not every eyepiece in a branded lineup may work well in your telescopes.
    This is why you will find most astronomers have multiple brands in the eyepiece kit.
    Both sets that you mention have a good reputation.
    Thanks for the reply Gabby. Is there anyway to tell which ones might not work well? I know my refractor will take high powers extremely well on nights of good seeing. My little SCT seems to do good also with what I have.
    Is there anyway to tell before I buy something that may not work? I hate to waste my money.

    Thanks, Mike

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    Default Re: Help with eyepiece decision

    Without actually trying them you can look for reviews of the specific eyepieces being used in a telescope like yours.
    Your SCT has a very forgiving focal length and the majority of eyepiece designs will work well in it.
    At f/5 for your refractor you will need to be a bit more mindful of eyepieces that will work in a fast telescope.
    Plossl and Orthoscopics will work well but designs like a Erfle will show poor edge performance.
    New widefield eyepieces are normally edge corrected quite well for fast telescopes.
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    Refractors: Antares 105 f/15, Celestron 150 f/8, Stellarvue NHNG 80 f/6.9, TAL 100RS f/10, TS 102 f/11, UR 70 f/10, Vixen SD115s f/7.7
    Mounts: Celestron SLT w/ pier mod & EQ-3 tripod, Celestron hypertuned CG-5 w/ tracking motor & Argo Navis, Manfrotto 028B w/ Stellarvue M2C, Manfrotto 055PRO w/ 128RC, TAL-1 HD EQ, Vixen SXP w/ HAL-130 SXG & half pier
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  5. #5
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    Default Re: Help with eyepiece decision

    Ask about specific EPs (brand and focal length) matched with a specific scope. It would also help to list your equipment in your signature, Upper right hand corner "SETTINGS" then lists on the left "Edit Signature" then bottom right hand corner "Save Changes".

    Skip the Baader 2" visual back, because of the size of the baffle of the rear port on the C5, it will not benefit from 2" EPs.

    Comparing the X-Cel LXs and the Agena Dual EDs, both are good. I would give the slightest edge to the X-Cel LXs at the shortest focal lengths (less than the 12mm). But the Dual EDs have a 15mm that the X-Cels do not, just in case you are interested in that specific length and the X-Cels have a 7mm and 9mm where the Dual EDs have only an 8mm in that range.
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    Default Re: Help with eyepiece decision

    I’ve used clones of the Dual Ed’s and owned the XCels when I had a c8. I don’t think you can go wrong with either for the money. It’s been awhile so I’m not up to speed on what specific FLs are in each line up but I’ve used both in F/10 SCts and thought they were great.
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    Default Re: Help with eyepiece decision

    Both lines are good. I tested them side by side and have a slight preference for X-Cel LX. They have a bit better eye relief and I like eyeguard design better.

    But as other indicated the focal length line-up is only partially overlapping, so you may need to mix end match. What is F-ratio of your scope?

  8. #8
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    Default Re: Help with eyepiece decision

    Quote Originally Posted by Gabby76 View Post
    Without actually trying them you can look for reviews of the specific eyepieces being used in a telescope like yours.
    Your SCT has a very forgiving focal length and the majority of eyepiece designs will work well in it.
    At f/5 for your refractor you will need to be a bit more mindful of eyepieces that will work in a fast telescope.
    Plossl and Orthoscopics will work well but designs like a Erfle will show poor edge performance.
    New widefield eyepieces are normally edge corrected quite well for fast telescopes.
    I did not have as much experience with Dual EDs, but X-Cel LX work nicely in my refractors F5 to F7.5.

 

 

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