7 replies to this topic

[Star1Fun]

Hello fellow star gazers,

    I am thinking of buying the Hyperion 10mm eyepiece. Does any one have experience with this eyepiece it will round out my current collection of eyepieces which is a 32mm TV, 24mm 68 degree ES, a 17mm Hyperion, and soon to possibly buy a 10 mm Hyperion. 

    I have read where the Hyperions are great on my f/10 SCT and not so good on fast scopes which I do not own. Just curious what your thoughts might be? 

    Thank you so much. 

[The Cloud Gazer]

If you like the 17 you will like the 10 too!
In my f9 refractor it is really great.

[wolf man]

   I own and use the 5mm and 8mm Hyperions with my f/8 and f/7.5 refractors and I'm very happy with them. I don't think you'll be disappointed with their performance in your SCT. I also have it's clone, the Orion stratus in 13mm which I use as a 'beater' eyepiece on public nights. The Hyperions seem a good deal sharper, and their color truer than the Stratus. I'm guessing Baader's excellent coatings may account for some of this difference. I'd say you can buy with confidence! 

   The only caveat would have nothing to do with the eyepiece's quality but with the magnification it will give with the longer focal length of your f/10 scope. Here in Vermont the choppy seeing often limits the number of nights that I can use higher magnifications. On those occasions when the air is steady however, I'm quite pleased with the views the Hyperions provide. Best of luck!

[SeattleScott]

I own and use the 5mm and 8mm Hyperions with my f/8 and f/7.5 refractors and I'm very happy with them. I don't think you'll be disappointed with their performance in your SCT. I also have it's clone, the Orion stratus in 13mm which I use as a 'beater' eyepiece on public nights. The Hyperions seem a good deal sharper, and their color truer than the Stratus. I'm guessing Baader's excellent coatings may account for some of this difference. I'd say you can buy with confidence!
The only caveat would have nothing to do with the eyepiece's quality but with the magnification it will give with the longer focal length of your f/10 scope. Here in Vermont the choppy seeing often limits the number of nights that I can use higher magnifications. On those occasions when the air is steady however, I'm quite pleased with the views the Hyperions provide. Best of luck!

I don’t think the issue is Hyperions being better than Stratus. It is well known that the series is inconsistent, like many affordable series. The 17 and 21 are talked about as being the best, while I get the impression the 13 may be the dog of the group. It probably isn’t so much a Hyperion versus Stratus issue as the 13mm just being particularly weak.

[SeattleScott]

To the OP, good luck in your quest for information on the 10 Hyperion. Years ago I researched this and basically got zilch. It is the newest member of the group, so just not that many people have it. And those who do are typically not the hard core stargazers who do eyepiece shootouts with four premium eyepieces of the same focal length, and write four pages on the differences between them. People who buy Hyperions are more budget conscious and don’t typically have other options at the same focal length to compare against. So I was able to dig up a couple people who said it was good in the center but not perfect at the edge, which honestly sounds like about 85% of all eyepieces available.

[eblanken]

Hi (aka Star1Fun),

 

+1 on what (aka SeattleScott) said . . .

 

"People who buy Hyperions are more budget conscious and don’t typically have other options at the same focal length to compare against"

 

I have several Meade 8 inch SCTs (203mm x 2,000mm, f/10) and own the full set of Baader Hyperions. I also own the full set of Pentax XW which also 68 Degree Apparent Field of View (AFoV) eyepieces, but more premium than the Hyperions. Both provide 20mm of Eye Relief (ER) which I need because I wear corrective eyeglasses (for Astigmatism).

 

I believe (from what you have told us so far) the Baader Hyperion 10mm would be a good match for your SCT at a modest price point as contrasted with the Pentax XW 10mm which is about twice the price on the used market. The 10mm might be the upper limit of your sky at 200x or you might have better skies than me and Scott usually experience . . . 

 

Bottom line: buy what you can afford and enjoy what you own . . . trade up when you can . . . eyepieces can be addictive . . . 

 

Best,

 

Ed

 

P.S. there are other eyepieces out there at 10mm, but if you like the 17mm, you will like the 10mm as was already said in post #2 . . . 

        I also own Vixen LV Lanthanum 10mm and TeleVue Radian 10mm as well, but these are discontinued, so only available used . . . 

Edited by eblanken, 20 April 2025 - 02:57 AM.

[quilty]

I have the 5, 8, 10 and 17. As said above I can't tell much about them I just like them. Anyway I find much more diffs between different scopes at same powers than between eyepieces.
At a more intensive comparison between the ES 6.7 and the Hyper 8 (extended to 5.5mm) I prefer the 5.5. Better detail and better viewing comfort at the moon. Prefer it, too to the ES 5.5 mm for its much larger FOV
The 10 is quite new to me so I can tell it neither good nor bad.

I want to extend the 10 to about 7.5 mm and the 17 to 13 mm having the 15 and 20 mm goldlines already.

PS one drawback to the 10 mm though: the colour of the ring is no true colour. Something between all colours, impossible to name it

Edited by quilty, 20 April 2025 - 05:36 AM.

[jerobe]

I purchased a Hyperion 10 several years ago for my 8 inch f/10 SCT and 3 inch f/7.63 refractor.  It works well in both of my  scopes and I have absolutely no complaints or urges to upgrade.  And it's versatile and can be used as either a 2 inch or 1 1/4 eyepiece.