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Baader Hyperion 2" Finetuning Stopring with Brass Clamping # HYP-STOP 2958027

4.9 (10 Reviews) Read Reviews Write Review
Brand Baader Planetarium
Part Number 2958027
Availability available

Product Info

Manufacturer Description

Baader Item #2958027

Hyperion 2" Finetuning Stop Ring (with internal brass compression ring) is an additional accessory for the Baader Hyperion eyepieces. It is to be used when observing with a 2" mirror or prism star diagonal and prevents the 1.25" eyepiece barrel from hitting and damaging the mirror star diagonal or prism, whenever additional Finetuning Rings are lengthening the original eyepiece body. The second photo above demonstrates the combination of a Hyperion eyepiece, a 14mm finetuning ring, a 2" stop ring and a 2" diagonal mirror.

Of course, the use of this item is not restricted to Baader eyepieces only. It can also be used as a premium 2" parfocalizing ring with any brand of 2" eyepiece or 2" astronomy accessory. Features two large clamping thumbscrews for quick, no-tools hand use; virtually all other parfocalizing rings on the market use cumbersome set screws requiring allen keys for loosening/tightening.

Reviews

4.9 (Based on 10 Reviews) 100% of reviewers recommended this product.
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    1. Guest

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      Review by Ivan R.
      1556508087
      Apr 28, 2019

      5.0 Quality product.

      Pros:

      Cons:

      Comments:

      Works great. I recommend it to everyone using fine tuning rings wit Baader Hyperion eyepieces.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    2. Guest

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      Review by B H.
      1507724280
      Oct 11, 2017

      5.0 Quality!!

      Pros:

      Cons:

      Comments:

      works great!!

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

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      Review by Raymond T.
      1495036599
      May 17, 2017

      5.0 A bit pricey but it works well

      Pros:

      Cons:

      Comments:

      I use it to keep the long nose of my Baader Hyperion Modular eyepiece away forn the mirror in the diagonal

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    4. Guest

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      Review by Daniel P.
      1491833691
      Apr 10, 2017

      5.0 Works Great

      Pros:

      Cons:

      Comments:

      Needed to provide a little extra back-focus for eyepieces used with a Newtonian reflector. Very easy to slip on and off and adjust position or move from one eyepiece to another. Quality construction including brass compression ring. It works just like it's supposed to.

      Bottom Line: Would you recommend this item? Yes
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      This review was provided courtesy of AgenaAstro.com

    5. Guest

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      Review by Chuck Hunt of Brook Park, Ohio.
      1363996800
      Mar 22, 2013

      5.0 Baader Stop Ring

      Pros:

      Easy to Use,Strong Construction,Lightweight

      Cons:

      Comments:

      I needed to adjust the eyepiece spacing for a particular setup in my solar wedge. This stop ring worked perfectly.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    6. Guest

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      Review by NealC of Clayton, NC.
      1354320000
      Nov 30, 2012

      5.0 A must have tool

      Pros:

      Easy to Use,Lightweight,Compact,Accurate,Strong Construction

      Cons:

      Comments:

      If you have Hyperion eyepieces with finetuning rings, and use them in a 2" diagonal, this is a must have item.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    7. Guest

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      Review by adamo of Roma, Italy.
      1319846400
      Oct 28, 2011

      5.0 Perfect device A++++

      Pros:

      Strong Construction

      Cons:

      Comments:

      Useful

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

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      Review by Tom-Solo of SW Wisconsin.
      1307318400
      Jun 5, 2011

      5.0 I'll get more of these

      Pros:

      Strong Construction

      Cons:

      Comments:

      My telescope focuser just doesn't have the travel to make every eyepiece work. This adjustment ring mounted on the barrel of my (big) 2" eyepiece allows me to just stick it in, focus, and voila. I'll get more. Really worth it.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    9. Guest

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      Review by Stefan of Huntington Beach, CA.
      1294012800
      Jan 2, 2011

      4.0 Approved, small concerns / alternatives

      Pros:

      Compact,Strong Construction,Soft on barrel surfaces

      Cons:

      Comments:

      Keeps filters from touching the diagonal mirror. The tightening system is great. Fits best on the largest diameter of the eyepiece barrel (not very long on hyperion eyepieces, so placement is limited for good stability). Evaluate a barrel extender as an alternative.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    10. Guest

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      Review by Jim of Connecticut.
      1251676800
      Aug 30, 2009

      5.0 Excellent ring but a bit pricey

      Pros:

      Strong Construction,Accurate

      Cons:

      Comments:

      These are excellent rings but a bit pricey. The only down side is that the thumb screw sticks out if you want to leave this ring semi-permanently attached to your eyepiece.

      On the other hand it makes field adjustments very easy.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

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