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  1. #1
    chainek's Avatar
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    Default Choosing a Baader Hyperion



    2" Eyepieces - Eyepieces

    I've decided on getting two of these guys. With their modular design being able to add and remove fine tuning rings to change the focal length I'm stuck as to what I should choose. As a single eye piece can be 5 eye pieces!

    I'm using the Orion Xt8 F/5.9 1200mm focal length scope.

    I've attached an image of the focal length chart.




    My telescope can use both 1.25" and 2" eyepieces.

    I'm certain that I'll be getting the 21mm eyepiece as the 1.25" adapter can be removed to make the eyepiece 32.2mm. Reviews seem good.

    With the fine tuning rings this piece can also get me 17mm, 15mm, and 14mm. So that will cover the 14mm-32mm range.

    The problem is that I hear you have to be really careful when removing and changing rings as dust can get inside easily. So I think I'll most likely keep this guy in the 32mm setup as a finding eyepiece.

    From reading reviews the 14mm and 17mm eyepiece seems to be excellent for DSOs depending on scope of course. If I grab one of those as a second I'd be overlapping a bit with the 21mm ep. But I'd also not be optimal for planetary viewing I think.

    The 8mm ranges from 8mm to 4.3mm which sounds about right for planets. (150x - 279x) (taking into considering I'm using a dob so keeping stuff in the eyepiece could become a chore) With the 1.25" adapter removed it becomes a 21mm eyepiece though! Which... was my first choice. lol. I'm running in circles here. But I'd be using the 21mm with the adapter removed for its 32mm mostly.

    To sum up my insanity, If I get the 21mm and the 8mm I'd be looking like this:

    • 21mm (14mm - 32mm) 85x - 37x
    • 8mm (4.3mm - 8mm) 278x - 150x


    I feel like I need to get a 13mm or a 17mm as well to fill a gap. I'm more interested in DSO's than planets but want to try to cover the best that I can with 2 eye pieces. So If I got a 13mm instead of an 8mm how is my planetary viewing going to be?

    • 13mm (8mm - 13mm) 150x - 92x


    That 13mm can also be a 21mm with the 1.25" adapter removed.

    Every time I think that I've made up my mind I start thinking about how I'm going to have to be changing fine tuning rings to achieve some of these focal lengths and trying to figure out which would be most efficient.

    I truly want to be geared for DSO viewing but dont want to dissapoint when showing my brother Saturn.
    Orion XT8 Classic | Meade 4.5" garage sale special | Baader Hyperion 8mm, 17mm | GSO Superview 30mm | 25mm Plossl
    astronomyblog.webuda.com

  2. #2
    spectre180's Avatar
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    Default

    Have you considered an 8-24mm Zoom?
    I have the Meade and like it, although it isn't parfocal, the price is pretty good at $89.99 incl free shipping from Meade Telescope 8mm - 24mm Zoom Eyepiece 1.25 Inch - Telescope Eyepieces at Telescopes

    I have two of the Baaders though, and love them.
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    . Meade Series 4000 Plossl Set, Baader Hyperion 3.5mm and 21mm EP, Meade 8-24mm Zoom. Orion ST-80, Orion 50mm mini guide scope, Orion StarShoot AutoGuider. Canon EOS 5D, 50D and 7D,

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  4. #3
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    Default

    Another alternative, if you're considering buying two hyperion EPs, could be to get the Hyperion MarkIII Zoom (8-24mm). OK, it will not reach 32mm, but you will not need any ring to change its focal length.


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    Binos: Celestron SkyMaster 15x70. EPs(1.25"): Baader Hyperion 31mm aspheric, Baader Hyperion 8-24mm Mark III zoom, Orion SP 25&10mm, GSO 2.5x APO
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    Default

    The MK III is worth its weight in gold, in my opinion.
    -Nick

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    Default

    I have Baader Hyperion 17 mm and it basically sits in my scope all night - with my focal length it gives me 75x, which is perfect for most of DSOs. I also have 5mm same type and I use it for Lunar, planetary and some DSOs.
    I have never disassembled them to get the Barlow out, because I'm reluctant to do it in the dark.
    I was thinking about buying another one at 10mm which would fill the gap in the future

    I would not recommend getting a zoom eyepiece. I don't believe the eyepiece design can be optimized for several focal lengths at once, at least not in this class of eyepieces....

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  10. #6
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    Default

    The 13mm and the 21mm --- alone will be very useful-- top it off with the 31mm Aspheric (Hyperion).
    Baader 31mm Hyperion Aspheric 2"-1.25" Eyepiece - Free Shipping - OPT Telescopes

    If you want to try a low cost (good) 2 inch eyepiece check out the GSO Superview in 30mm and 42mm.
    GSO SUPERVIEW 68° Telescope Eyepieces Review


    Clear skies.
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  12. #7
    chainek's Avatar
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    Default

    Thanks guys.

    I keep reading in many different places that the 17mm is the best one of the series. Maybe I'll grab the 5mm and 17mm... then see how those work out for me before going any further. I almost bit on that 30mm GSO superview before I found out that these have the tuning rings. I'll probably end up grabbing one of those.

    This would be easier if there was a telescope eyepiece salesman that came around to sell eps so I could try the darn things.
    Orion XT8 Classic | Meade 4.5" garage sale special | Baader Hyperion 8mm, 17mm | GSO Superview 30mm | 25mm Plossl
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  13. #8
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    Default

    Quote Originally Posted by Joe Lalumia View Post
    The 13mm and the 21mm --- alone will be very useful-- top it off with the 31mm Aspheric (Hyperion).
    Baader 31mm Hyperion Aspheric 2"-1.25" Eyepiece - Free Shipping - OPT Telescopes

    If you want to try a low cost (good) 2 inch eyepiece check out the GSO Superview in 30mm and 42mm.
    GSO SUPERVIEW 68° Telescope Eyepieces Review


    Clear skies.
    I agree with Joe and love my 13mm hyperion. -Greg
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  15. #9
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    Default

    I won a 17 mm Orion Stratus (basically the same as the Baader but without the rings) at a star Party some years ago and to be honest IT EARNED its way into my eyepiece kit which contains mostly Pentax XW's and Panoptics

    It is that good in my slow f/10 Scts...

    HOWEVER...NO WAY NO HOW would I personally enjoy, or even put up with,.. taking an eyepiece apart, removing or replacing rings, in the DARK while out observing....To me that is just not a very smart thing to do... PERIOD !!!!

    Just my opinion.

    Bob G
    CPC1100 housed in a slotted domed observatory (Exploradome) 4 and 5 inch refractors for use from the lawn, a 8" Sct (NS 8i) for star parties...
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    1. tinker with older Corvettes (6 in garage)
    2. make a heck of a lot of sawdust in my wood shop.

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  17. #10
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    Default

    I just wanted to second what Bob said. I have a set of hyperions and the tuning rings. It only took once for a tuning ring to go south off the porch into the dirt to realize that changing in the dark is a bad bad idea. Pre-plan your session and set up the hyperions before you turn down the lights and go outside.

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