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Thread: Baader Hyperion 17mm or Explore Scientific 68* 16mm EP

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    Default Baader Hyperion 17mm or Explore Scientific 68* 16mm EP



    Baader Hyperion 17mm or Explore Scientific 68* 16mm EP......Which has the better optic quality? How good are they? Asking anyone who uses these or has used these or has had a chance to compare them. Looking to get one in this power range and price.

    Thanks for any input.

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    Default Re: Baader Hyperion 17mm or Explore Scientific 68* 16mm EP

    I have never used the Explorer eyepiece, but on the other hand I have never heard a bad word against them either. I do own the Baader 17mm and like it a lot. Two advantages with the Baader it can adapt to both 2 inch and 1.25 inch observing. It can be used with fine tunning rings, which means you can get up to 3 size eyepieces (13mm 11mm and 9mm) Now the base price of the Baader is about the same as the Explorer, though I think OPT has a pretty competitive sale at the moment, and a set of tunning rings will set you back another $38.00
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    Default Re: Baader Hyperion 17mm or Explore Scientific 68* 16mm EP

    The 17mm is one of the better performing eyepieces in the Hyperion line... I have 'em all.

    I don't have the ES 16mm, but can assure you that you won't be disappointed by any ES eyepiece.

    Here's a thought...
    If your scope can handle 2" eyepieces, you might consider the ES 82o 18mm eyepiece. I recently put my 17mm Hyperion in my wife's EP case for her short-tube refractor in favor of the ES 18mm because of the wider AFOV.

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    Default Re: Baader Hyperion 17mm or Explore Scientific 68* 16mm EP

    You clever little devil! Hope she doesn't read your post you may get it back. He He


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    Default Re: Baader Hyperion 17mm or Explore Scientific 68* 16mm EP

    You never said what scope you would use it in. They both will perform quite well in slower scopes, but differences will likely show up with faster ones. I used to own Hyperions (21, 13, 8, 5 & zoom), and while they were good EPs, they struggled some in the outer portions of the FOV in my f/5 Z10, partially because they have just a tiny bit of astigmatism in the outer edge of the field. The ES will provide better better edge of field correction in such scopes. On-axis, I don't think you would see a lot of difference, if any. One important facet is do you wear glasses to observe, thus have an eye relief (ER) requirement to be concerned with? The Hyperions all have 20mm of ER, while the ES 16mm has 11.9mm ER. Just something to be aware of.
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    Default Re: Baader Hyperion 17mm or Explore Scientific 68* 16mm EP

    Have to agree, it all depends on the scope its used in (but also agree you should consider the ES82 18mm)
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    Default Re: Baader Hyperion 17mm or Explore Scientific 68* 16mm EP

    Quote Originally Posted by Zilladude View Post
    Have to agree, it all depends on the scope its used in (but also agree you should consider the ES82 18mm)
    I certainly cannot disagree with the ES 82 18mm, as with my Z10, it is my primary DSO hunting EP. However, it does have an ER 0f 13mm, so it you wear glasses it might prove problematic for you.
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    Default Re: Baader Hyperion 17mm or Explore Scientific 68* 16mm EP

    Thanks for the input so far. The scope is an Orion XTR 8" newt. F/6 I believe. I don't wear glasses for normal stuff just reading glasses. I'm 66 yrs young. Down the road I might go with an 82* EP but for now just looking for a better more usable and better optics than the kit comes with, which is a ploosi serius 25mm 52* eye piece. It has a dual focuser, 2" and 1.25. I'm thinking one of the 68* EPs would be a big improvement over that, at a reasonable price for the upgrade.

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    Default Re: Baader Hyperion 17mm or Explore Scientific 68* 16mm EP

    I can't see either one being bad. Like Lowjiber and KT4HX I too have the ES 18mm 82° EP so I'll vouch for it as well.

    BTW, I too am 66 and am blind without my glasses.....except when I look through my scopes as I don't wear them when viewing
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    Default Re: Baader Hyperion 17mm or Explore Scientific 68* 16mm EP

    Quote Originally Posted by redfeathers View Post
    Thanks for the input so far. The scope is an Orion XTR 8" newt. F/6 I believe. I don't wear glasses for normal stuff just reading glasses. I'm 66 yrs young. Down the road I might go with an 82* EP but for now just looking for a better more usable and better optics than the kit comes with, which is a ploosi serius 25mm 52* eye piece. It has a dual focuser, 2" and 1.25. I'm thinking one of the 68* EPs would be a big improvement over that, at a reasonable price for the upgrade.
    And that's the thing. Whichever you choose will be a major improvement, and I think you will be amazed at looking through either after using the Sirius. You may not want to go to an 82* later, as some find they don't like that large of a field. I know that I like it, but I will never go larger, say like 100*. I find that at 82* the eye movement required to take in the whole field is at the top end of my comfort level. Some find that comfort level at 68 to 70*. Find what works for you and run with that. Have fun!
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