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Baader Hyperion Finetuning Ring - 14mm # HDFT-14 2958214

5.0 (26 Reviews) Read Reviews Write Review
Brand Baader Planetarium
Part Number 2958214
Availability available

Product Info

Manufacturer Description

Baader item #2958214

With the addition of Baader's new Finetuning Rings, each Hyperion eyepiece can now function as four eyepieces! Available in 14mm and 28mm lengths.  The finetuning rings are 2" OD and threaded M48 (filter thread) on each end, so they can be installed in-between the Hyperion's removable front negative element and main body. The added spacing decreases the focal lengths (increases magnification), according to the table below. Finetuning rings are made to match the Hyperion finish, and are fully internally sharp v-threaded and blackened to eliminate stray light reflections from the internal surfaces.

Also, another novel way to change eyepiece focal length is to use a Baader 2" filter in-between the Hyperion negative element and main body, just like a small finetuning ring. The 8.5mm thickness of the filter cell will have a similar (milder) effect in reducing the Hyperion's focal length. This also allows use of 2" filters with Hyperions, something that is not possible with any other 1.25" eyepiece.

Please Note: Removal and installation of the front negative element should be done in a clean environment to prevent dust or other contamination from depositing on the internal elements (which are very difficult to clean). Also, please note that the 24mm Hyperion is not able to make use of the Finetuning Rings, due to its different optical design.

Hyperion EP With 14mm Ring With 28mm Ring With 14 + 28mm Rings With Baader 2" Filter
21 mm 17.6 15.5 14.0 18.5
17 mm 13.1 10.8 9.2 14.6
13 mm 10.8 9.2 8.1 11.7
10 mm ~7.9 ~6.7 ~5.8 ~8.8
8 mm 6.0 5.0 4.3 6.9
5 mm 4.0 3.2 2.6 4.3
3.5 mm 2.5 2.1 1.8 2.9

 

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.

Reviews

5.0 (Based on 26 Reviews) 92% of reviewers recommended this product.
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    1. Guest

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      Review by Brent K.
      1541522283
      Nov 6, 2018

      5.0 Works as promised

      Pros:

      Cons:

      Comments:

      The use of this ring was suggested to me to add additional depth to my 2" filters. It does an excellent job on this. Allows me to use my 2"/1.25" adapter with a filter attached and a barlow on my eyepiece.

      Agena was great as well. I had a question about how to store the new filter/ring combination and had my question answered quickly.

      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 Mark G.
      1534717262
      Aug 19, 2018

      5.0 Cheap Additional Eypiece

      Pros:

      Cons:

      Comments:

      The Baader Finetuning Ring gives you a whole additional eyepiece at a very small cost. Your eyepiece works like a higher magniffication eyepiece with no negative effects.
      The ring does make your eyepiece longer, if that's a concern.

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

      This review was provided courtesy of AgenaAstro.com

    3. Guest

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      Review by John R.
      1516413971
      Jan 19, 2018

      5.0 Extension fun

      Pros:

      Cons:

      Comments:

      Hello,

      Having options in a product is best when they make sense and work. Being able to go between 1.25 and 2” barrels is option. Changing the focal length to increase magnification is another option. Now for a clear sky to view.

      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 Merrill G.
      1498852151
      Jun 30, 2017

      5.0 Money saver

      Pros:

      Cons:

      Comments:

      Only AFTER I bought a lot of the Hyperion eyepieces did I discover that I only needed the 17mm and the 8mm to cover almost all the powers available to my SCT 8 when I got the 14 and the 24 spacers. Everyting from 22mm to 4mm is covered. These are finely machined like all Baader products. Go to Baader for their overview PDF and figure out how to cover your scope's range and then sell off your extra eyepieces and go buy more stuff!

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

      This review was provided courtesy of AgenaAstro.com

    5. Guest

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      Review by Raymond T.
      1495036910
      May 17, 2017

      5.0 A good accessory for the Baader Hyperion Modular Eyepiece

      Pros:

      Cons:

      Comments:

      It works well and allows a change of focal length for the eyepiece. Numerous combinations in conjunction with the 14mm FTR.

      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 JCD of Maryland.
      1475193600
      Sep 29, 2016

      5.0 Does what it is supposed to

      Pros:

      Strong Construction

      Cons:

      Comments:

      This product allows to you change the magnification on certain Baader eye pieces. It works as advertised, though it is somewhat difficult to change the rings in the darkness of night while viewing. It is much easier to set up the eyepieces ahead of time.

      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 Beginner of Orange, CA.
      1463356800
      May 15, 2016

      5.0 Must have for Baader Hyperion eyepiece.

      Pros:

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

      Cons:

      Need To Refocus

      Comments:

      These are an inexpensive site way to provide magnification without the need for a Barlow or new lense they are cheap and screw into the eyepiece. The eyepieces are not exactly cheap but good quality for a reasonable price, especially since you do not need to purchase as many.

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

      This review was provided courtesy of AgenaAstro.com

    8. Guest

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      Review by Derek of Westport, IN.
      1455062400
      Feb 9, 2016

      5.0 A Great Multipurpose Ring

      Pros:

      Easy to Use,Lightweight

      Cons:

      Comments:

      I use this ring to enable 2" filter use with all my eyepieces. I screw it on to the back of my 1.25" adapter and it gives plenty of clearance between all of my 1.25" eyepieces and whatever 2" filter I am using.

      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 JJ of South Dakota.
      1435363200
      Jun 26, 2015

      5.0 Works perfect

      Pros:

      Easy to Use,Strong Construction

      Cons:

      Comments:

      Works excellent

      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 Dustyhills of Washington, UT.
      1401494400
      May 30, 2014

      5.0 Most Versatile Eyepiece System Out There

      Pros:

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

      Cons:

      Comments:

      I use them on a 17mm Baader Hyperion. With these rings you don't have to spent hundreds of dollars on other eyepiece focal lengths. With a set of 14mm and 28mm rings your eyepiece is the same as having four different eyepieces. Add a barlow and ......... This is amazing!

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

      This review was provided courtesy of AgenaAstro.com

    11. Guest

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      Review by Newt of Northern MN.
      1363996800
      Mar 22, 2013

      5.0 One ring to rule them all!

      Pros:

      Lightweight,Easy to Use,Strong Construction

      Cons:

      Comments:

      I have the Hyperion 13mm and bought both the 14 and 28mm rings at the same time; this is a great modular component the the Hyperion line, allowing me to zoom in with my EP down to 8mm.

      Living in Northern Minnesota, Ive used the rings in temps of -10F or lower and have no problems with manipulating the parts using my Lybar chair as a table. I have read some negative opinions on the Baader system, but it seems very versatile and the flexibilty, quality and great views wins me over.

      Ive used these since Fall 2012

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

      This review was provided courtesy of AgenaAstro.com

    12. Guest

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

      5.0 One set is all you need

      Pros:

      Strong Construction,Accurate,Lightweight,Compact

      Cons:

      Difficult to Use

      Comments:

      For the price of a couple these, you turn one Hyperion eyepiece into a set. It can be a bit difficult to change rings in the dark. And a stopring is needed if using with 2" diagonals.

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

      This review was provided courtesy of AgenaAstro.com

    13. Guest

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      Review by Ozman of Hopkinsville, KY.
      1337558400
      May 20, 2012

      5.0 Must have for Hyperion owners

      Pros:

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

      Cons:

      Comments:

      Works perfectly, machined to a super smooth fit. Very light weight so it doesn't increase the weight of the eyepiece. Simple to change the focal length of your premium eyepiece and stays crisp to the edge. If you are lucky enough to own a Hyperion,you absolutely must have these fine tuning rings.

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

      This review was provided courtesy of AgenaAstro.com

    14. Guest

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      Review by Fernando Lopes. of Brazil, PR, Curitiba.
      1324080000
      Dec 16, 2011

      5.0 The perfect match

      Pros:

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

      Cons:

      Comments:

      It adds great value on Baader Hyperion Eyepieces and improve performance on Baader Multi Purpose Coma Corrector.
      My set of three Hyperion 5mm, 13mm and 21mm with it now are equalent to a set of twelve eyepieces.
      And almost three more if I unscrews the lower eyepiece barrel.
      It is my second set of Hyperion Finetuning rings.
      I can quickly tuning the focal lenght and the exit pupil, depending of on the night conditions.

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

      This review was provided courtesy of AgenaAstro.com

    15. Guest

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      Review by Dark_Falconer of Monroe, GA.
      1322956800
      Dec 3, 2011

      5.0 Baader Hyperion Finetuning-Rings

      Pros:

      Easy to Use,Strong Construction,Accurate,Lightweight

      Cons:

      Comments:

      Very Solid. What else can be said, an additional eyepiece with a Finetuning-Ring purchase!

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

      This review was provided courtesy of AgenaAstro.com

    16. Guest

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      Review by Rangel of Guayas, Ecuador.
      1320537600
      Nov 5, 2011

      5.0 Good quality, versatile

      Pros:

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

      Cons:

      Comments:

      This is a great product, a good way to vary the focal length without the need for a barlow

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

      This review was provided courtesy of AgenaAstro.com

    17. Guest

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      Review by Filipe of Curitiba, Brazil.
      1320019200
      Oct 30, 2011

      4.0 Change focal length easily

      Pros:

      Compact,Lightweight,Easy to Use

      Cons:

      Comments:

      These rings change the focal length as an extension tube. Lightweight, easy to use and cost much less than a quality barlow.
      They form a great combination with the Baader Hyperion.

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

      This review was provided courtesy of AgenaAstro.com

    18. Guest

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      Review by Captain Ron of West Michigan.
      1319846400
      Oct 28, 2011

      5.0 Baader Hyperion Finetuning Rings

      Pros:

      Great Idea,Easy to Use,Strong Construction

      Cons:

      None

      Comments:

      Great product, easy to understand and use.

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

      This review was provided courtesy of AgenaAstro.com

    19. Guest

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      Review by Dave of Tenino, WA.
      1306627200
      May 28, 2011

      5.0 Change your focal length

      Pros:

      Accurate,Compact,Strong Construction

      Cons:

      Comments:

      When using these fine tuning rings each eyepiece is capable of 5 diferent focal lengths. Agena Astro Products is a quality on line store with fair price. I will buy from them again.

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

      This review was provided courtesy of AgenaAstro.com

    20. Guest

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      Review by Jesiel of Rio de Janeiro - Brazil.
      1306627200
      May 28, 2011

      5.0 Good quality and good price!

      Pros:

      Strong Construction

      Cons:

      None

      Comments:

      I loved this rings. Are perfect!

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

      This review was provided courtesy of AgenaAstro.com

    21. Guest

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      Review by pvaz of Portugal.
      1292716800
      Dec 18, 2010

      5.0 Does what it says

      Pros:

      Strong Construction,Accurate

      Cons:

      Comments:

      I needed this to be able to use 2" filters on my Ethos 10mm. It does what it's supposed to do and it's much cheaper then the equivalent TV barrel extender.

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

      This review was provided courtesy of AgenaAstro.com

    22. Guest

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      Review by Texdawg of El Paso, TX.
      1292716800
      Dec 18, 2010

      5.0 Has Many Uses

      Pros:

      Accurate

      Cons:

      Comments:

      They are very useful for all 2" application for use with my 2" Barlow and 2" filters. Gives me powers other than 2x with my Barlow.

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

      This review was provided courtesy of AgenaAstro.com

    23. Guest

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      Review by peeech of North Augusta, SC.
      1272672000
      Apr 30, 2010

      5.0 Baader Hyperion Finetuning Ring

      Pros:

      Strong Construction,Accurate

      Cons:

      Comments:

      Needed this to go with my Hyperions. I like Baader products for their quality.

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

      This review was provided courtesy of AgenaAstro.com

    24. zanti-misfit

      zanti-misfit New Member

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      Review by zanti-misfit of Enterprise, AL.
      1257724800
      Nov 8, 2009

      5.0 Very worth it!

      Pros:

      Accurate,Strong Construction,Compact

      Cons:

      None

      Comments:

      These thing work so well, so easy to use. The threading is so well machined, makes swapping them in and out of my Hyperion lens so easy. Truly money well spent. Its like getting a whole new lens for less than [$]. Combine that with a Barlow and it gets even better. For Hyperion owners out there these should be in your collection ASAP! I highly recommend getting both fine tuning rings as well. The mag possibilities you can get from just one lens and these rings is truly awesome. With a Barlow...staggering...SO COOL!!

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

      This review was provided courtesy of AgenaAstro.com

    25. Guest

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      Review by Keith of Dubai, United Arab Emirates.
      1243382400
      May 26, 2009

      5.0 Tweaking your Hyperion eyepiece

      Pros:

      Well crafted,Strong Construction

      Cons:

      Ideally they need cases

      Comments:

      The Hyperion fine tuning rings offer untold pleasures for equipment tweakers and seeing connoisseurs alike. Being able to gain that bit of extra flexibility from your Hyperion eyepiece will allow you to frame your field of view just how you like it without any loss in image. These rings should be purchased as default with the Hyperions.

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

      This review was provided courtesy of AgenaAstro.com

    26. Guest

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      Review by Viju Joshi of Orlando, FL.
      1243382400
      May 26, 2009

      5.0 Quality product at reasonable price

      Pros:

      Quality rings

      Cons:

      None

      Comments:

      This is a great product from Baader. It litrally eliminates the need for barlow.Price was right.

      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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