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Blue Fireball 0.965" to 1.25" Eyepiece Adapter # E-03

4.9 (20 Reviews) Read Reviews Write Review
Brand Blue Fireball
Part Number E-03
Availability available

Product Info

Manufacturer Description

Many introductory telescopes sold worldwide use a smaller, older 0.965" diameter format for diagonals, eyepieces, and other accessories. Having a 0.965" barrel severely limits the number of eyepieces and accessories you can buy and use in the after-market. This popular eyepiece adapter allows 1.25" eyepieces, diagonals, and other accessories to be used in 0.965" focusers, and at once allows hundreds of more common 1.25" format astronomy items to be used with your telescope.

Precision machined from black anodized aluminum, this premium adapter includes a brass compression ring that restrains the eyepiece and prevents marring of the eyepiece barrel by the metal set-screw. Total height = 1.74" (44.2mm). Height of upper 1.25" barrel = 1.04" (26.4mm). Height of lower 0.965" barrel = 0.7" (17.8mm). Weight = 1.4oz.

Please note that the use of extension/conversion tubes such as this item requires additional in-focus travel. If your eyepiece is fully seated in the 1.25" upper barrel, then you will require 1.04" of additional in-focus travel. If your eyepiece does not fully seat in the barrel and extends out, then you will require additional in-focus travel by the amount the eyepiece extends out. As in the case of barlows, focal reducers, diagonals, and other accessories, your telescope may or may not be able to accommodate this additional travel requirement, so you may not be able to reach focus with all eyepieces and configurations. That is technically a limitation of the mechanical design of the telescope and not a shortcoming of the product itself.

Reviews

4.9 (Based on 20 Reviews) 100% of reviewers recommended this product.
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    1. Guest

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      Review by Dale D.
      1527573405
      May 28, 2018

      5.0 blue. fireball adapter

      Pros:

      Cons:

      Comments:

      It. Works great on my 76mm f/16 Japan sears. Refractor. I can used my better. 1
      .25. Eyepieces. Now like. My. Orthoscopics. On the planets and enhancing the views. The. Blue fireball. Really. Fits and snugs very well in the .965. Focuser of my sears. Scope thanks again. Agena. Great. Service. And. A great. Product. Thanks. Dale

      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 Richard S.
      1517192400
      Jan 28, 2018

      4.0 My review of this adapter

      Pros:

      Cons:

      Comments:

      I bought this for use with an older Celestron C90. The .965 side is a little loose requiring you to make sure its flush before tightening the set screw. Otherwise works fine. Been cloudy ever since getting it (of course).

      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 Danny L.
      1483809002
      Jan 7, 2017

      5.0 .965 to 1.25 adapter, BlueFireball

      Pros:

      Cons:

      Comments:

      Excellent piece, well made.

      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 qcdougn of Charlotte, NC.
      1396051200
      Mar 28, 2014

      5.0 Just what I needed!

      Pros:

      Strong Construction,Easy to Use

      Cons:

      Comments:

      This adapter was perfect to use with my vintage C5 SCT and modern 1.25" eyepieces.

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

      This review was provided courtesy of AgenaAstro.com

    5. dogstar

      dogstar New Member

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      Review by Starthrower of Peterborough, NH.
      1385769600
      Nov 29, 2013

      5.0 Perfect tool for the job!

      Pros:

      Easy to Use,Lightweight,Good finish,Compression Ring,Strong Construction

      Cons:

      Comments:

      This an excellent solution for adapting your better 1.25" EPs to a .965 focuser common on older scopes, especially refractors. Well made with a nice compression fitting for retaining the EPs, and light enough not to unbalance the scope. DO NOTE that this may not work in all reflectors due to additional focus travel needed, but works perfectly in the vintage refractor I've restored. Nice piece of gear at a good price, and quick shipping by Agena, as usual!

      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 Captain Ron of West Michigan.
      1354492800
      Dec 2, 2012

      5.0 0.965" to 1.25" Eyepiece Adapter

      Pros:

      Easy to Use,Strong Construction,Accurate

      Cons:

      Comments:

      Great well built adapter... will work great on my Celestron C90 spotting scope.

      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 Captain Ron of West Michigan.
      1354492800
      Dec 2, 2012

      5.0 0.965" to 1.25" Eyepiece Adapter

      Pros:

      Easy to Use,Strong Construction,Accurate

      Cons:

      Comments:

      Great product, very well made....Fits my Celestron C90 spotting scope just great!!

      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 Gary M of Livonia, MI.
      1348272000
      Sep 21, 2012

      5.0 Finder Eyepiece Upgrade

      Pros:

      Compact,Accurate,Easy to Use

      Cons:

      Comments:

      The purchased product was used on my telescpe finder scope to allow the use of 1.25 eyepieces in lieu of the .965 supplied. Thought about making one but the accuracy of my attempt would not match the quality and precision of this part. An excellent part!

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

      This review was provided courtesy of AgenaAstro.com

    9. sdtopensied

      sdtopensied New Member

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      Review by StarmanSteve of Atlanta, GA.
      1341014400
      Jun 29, 2012

      5.0 Works great with my ETX-125

      Pros:

      Lightweight,Strong Construction

      Cons:

      Comments:

      I use this adapter with my ETX-125 and the GSO 30 mm eyepiece and it works like a champ. No vignetting or other distortion of any type.

      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 DJB of Toronto, Canada.
      1320537600
      Nov 5, 2011

      5.0 Eyepiece adapter is great

      Pros:

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

      Cons:

      Comments:

      I love this product because it gives me a chance to use all type of eye pieces, which in turn allows me to see farther.

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

      This review was provided courtesy of AgenaAstro.com

    11. Guest

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      Review by larrymb of Chowchilla CA.
      1319846400
      Oct 28, 2011

      5.0 Works good

      Pros:

      Strong Construction,Works

      Cons:

      None

      Comments:

      Lets me use my 1.25 eye pieces

      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 Redneck Astro Freak of Big Bear Bay, NC.
      1319846400
      Oct 28, 2011

      4.0 Finally found one that works!

      Pros:

      Strong Construction,Accurate

      Cons:

      Difficult To Focus

      Comments:

      The older telescopes, and the refractor and reflectors being sold in many hobby stores are still not using the 1.25 eyepieces. All the adapters for the camera body assume the 1.25 inch focus tube. Ended up with the fireball adapter, trimmed a 2x barlow to compensate for the long barrel on the adapter and the focal plane of the camera adapter, the camera adapter, and my EOS 20D body to my 3" reflector. MOONSHOT!! Great photos.

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

      This review was provided courtesy of AgenaAstro.com

    13. KoPearNikus

      KoPearNikus New Member

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      Review by Joe Cepluer of Dark North Woods.
      1272672000
      Apr 30, 2010

      5.0 Superb Adapter

      Pros:

      Strong Construction

      Cons:

      Comments:

      A forum leader reports that most 0.965" to 1.25"adapters have only 19mm of clear aperture. This one has 22mm, to better reduce the possibility of vignetting from the adapter. Machined aluminum construction allows such thin but strong walls. Compression ring protects barrels. I'd prefer a safety groove but respect that half the buyers hate them, and so will not penalize my rating.

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

      This review was provided courtesy of AgenaAstro.com

    14. eljay5440

      eljay5440 New Member

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      1256831880
      Oct 29, 2009

      5.0 Nice surprise

      Pros:

      Well made

      Cons:

      None

      Comments:

      Great quality for a modest price. I've used hybrid diagonals in my .965 scopes but the Blue Fireball adapter beats them all for my usage. This adapter works very well with the light weight .965 diagonals. It's a pleasure to use some classic 1.25" orthoscopics in my classic scopes again.

      Bottom Line: Would you recommend this item? Yes
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    15. Guest

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      Review by mforster of Rapid City, SD.
      1251676800
      Aug 30, 2009

      5.0 Excellent adapter for vintage .965 scope

      Pros:

      Strong Construction

      Cons:

      Comments:

      This adapter allows me to use 1 1/4 eyepiece in my vintage Tasco 10TE and 7TE5. It is of solid construction and works great. No complaints. Highly recommended.

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

      This review was provided courtesy of AgenaAstro.com

    16. rathbaster

      rathbaster New Member

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      Review by rathbaster of Massachusetts.
      1244073600
      Jun 3, 2009

      5.0 Highly useful

      Pros:

      Strong Construction

      Cons:

      Comments:

      Last year I acquired a vintage Tasco 10TE refractor which had an old style 0.965 drawtube. I have some excellent 1.25" diagonals I wanted to use with this scope and this adapter allows me to do just that. It holds the diagonal solidly.

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

      This review was provided courtesy of AgenaAstro.com

    17. scopeboy42

      scopeboy42 New Member

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      1244014320
      Jun 3, 2009

      5.0 Excellent Adapter for Older Telescopes

      Pros:

      Excellent quality. Compression ring is nice touch

      Cons:

      May not have enough in-focus to use on some telescopes.

      Comments:

      This excellent adapter allows you to use your 1.25" eyepieces in older 0.965" focusers. Very high quality with nice compression ring system. Much better quality than the competition. The only Con to this item is that you may not have enough in-focus to use on some telescopes. This is not a fault of the adapter so I did not take any points off.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No
    18. scopeboy42

      scopeboy42 New Member

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      Review by Scopeboy42 of Raleigh, NC.
      1243987200
      Jun 2, 2009

      5.0 Excellent Quality and Construction

      Pros:

      Excellent quality

      Cons:

      None

      Comments:

      The compression ring makes this a great adapter. High quality construction. Please note that you may not have enough in-focus when used on some telescopes. This is not a fault of the adapter.

      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 Jasper of Los Angeles, CA.
      1243468800
      May 27, 2009

      5.0 Great accessory for C90!

      Pros:

      Strong Construction,Compact,Accurate

      Cons:

      NO CONS

      Comments:

      I got this to use as a straight-through adapter for a Celestron C90. It is perfect in this role for terrestrial use with my 1-1/4" diagonals and eyepieces.

      Solid unit with very nice compression ring - quality!

      No negatives - just what it says it is and good at it!

      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 Hacksaw of Draper, UT.
      1243382400
      May 26, 2009

      4.0 Good fix for a small problem

      Pros:

      Focus change workable,Good fit,Strong Construction

      Cons:

      Comments:

      I bought a 4" reflector at a garage sale to use while traveling. It had only one cheap eyepiece so was practically unusable. With the eyepiece adapter I was able to use my eyepieces from my big scope with out any problem. With this adapter I have a very usable traveling scope at a bargain price.

      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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