Hyperion 10mm FTR adjustments?

[Stephen]

Does anyone know what the values are for the 10mm when using the adjustment rings?

I can find lots of tables for the other EPs, just not one that includes the 10mm.

Cheers!

[26Left]

I didn't think they made a 10mm Hyperion. Is it new?

[Stephen]

I didn't think they made a 10mm Hyperion. Is it new?

New as of June/July last year I believe.

I've emailed Baader directly to see if they can help

[AndyH]

Hi.

When using these rings on the 'piece, do you need to adjust the focus? That is, is there more infocus needed?

Just wondering.

Ta,

Andy.

[GazOC]

I can't remember Andy but I'd guess, considering you are making the "Barlow" element more powerful, that it'll push the point of focus out a little. Whether thats counteracted by the extra 14mm or 28mm though and the net result is inward or outward.....

[Adrian]

On the 8mm you have to move focus further out each time you increase the amount of FTR in the system.

[26Left]

Yes. You have to refocus each time. I hadn't realised there was a 10mm. Sorry, I can't help with the focal length with FTRs. As you probably already seen, there is a table on the Baader web site, but it doesn't include their 10mm.

[Stephen]

Whilst I've not found a definite answer, I found this on agenaastro.com

"The new 10mm Hyperion eyepiece will also benefit from the use of these rings. While there are no official numbers from Baader, we estimate that the 10mm will function approximately as a 7.9mm eyepiece with the 14mm ring, a 6.7mm eyepiece with the 28mm ring, and a 5.8mm eyepiece with the 14+28mm rings."

[knightware2]

Kh3ldar -

Have you found these focal lengths to be accurate for the 10mm Hyperion with FTR combinations?

- Phyllis

[Stephen]

Hi Phyllis,

I didn't end up buying the 10mm in the end. I've actually sold all my Hyperions and moved over to the Celestron X-Cel LXs now.

Sorry!

[knightware2]

Thanks anyway. I hope you are enjoying the X-Cel LXs!

- Phyllis

[Damo636]

How do you find the LX's compare with the Hyperion's? I used to own most of the Hyperion's and found them pretty good.

[Stephen]

How do you find the LX's compare with the Hyperion's? I used to own most of the Hyperion's and found them pretty good.

I've not really had a full session out with them yet due to the weather, but from what I have seen so far they do appear to have better edge correction at f5 than the Hyperions.

They are also much smaller and lighter, I don't like hand grenades in the focuser

Also cheaper, I feel I may invest in a couple more before I'm done.