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Blue Fireball 2" to 1.25" Eyepiece Adapter # E-07

4.8 (19 Reviews) Read Reviews Write Review
Brand Blue Fireball
Part Number E-07
Availability available

Product Info

Manufacturer Description

This popular eyepiece adapter allows 1.25" eyepieces and accessories to be used in 2" focusers, diagonals and barlows. It includes a brass compression ring that restrains the eyepiece and prevents marring of the eyepiece barrel by the metal set-screw. It is precision machined from aluminum and anodized black.

Threaded to accept standard 48mm filters so you can use your 1.25" eyepieces with your 2" filters (be careful not to let the eyepiece barrel hit the filter though).

Specifications:

  • Total height = 1.19" (30.2mm)
  • Optical length = 0.39" (10mm)
  • Weight = 3.4oz

Reviews

4.8 (Based on 19 Reviews) 100% of reviewers recommended this product.
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    1. Guest

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      Review by Fred V.
      1518887723
      Feb 17, 2018

      5.0 High Quality

      Pros:

      Cons:

      Comments:

      Great piece and great service from Agena Astro

      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 James J.
      1511654179
      Nov 25, 2017

      5.0 Blue Fireball 2" to 1.25" adapter

      Pros:

      Cons:

      Comments:

      Like other Blue Fireball adapters, this one is about as good as it gets. It is flawlessly machined, beautifully (anodized) finished, perfectly functional and fits every application I have for it. On top of that, it is bargain priced compared to other similar adapters. Also worth noting is that eyepieces don't get hung up when inserting them like I've experienced with other such adapters. As always, Agena service and shipping is the best.

      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 Jason R.
      1504168157
      Aug 31, 2017

      5.0 Sturdy and to spec

      Pros:

      Cons:

      Comments:

      Worked just fine. Solid and doesnt nice around in the tube like my shorty adapter. I hang a dslr off a barlow attached to this adapter and it works great.

      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 Todd F.
      1499957000
      Jul 13, 2017

      5.0 Great product, great service!

      Pros:

      Cons:

      Comments:

      Great product, great service!

      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 Robert C.
      1491884951
      Apr 10, 2017

      5.0 Perfect for the price

      Pros:

      Cons:

      Comments:

      The Blue Fireball is my 3rd 2"-to-1.25" adapter and the one I like the best. All 3 have brass locking rings, but 1 of the others has the tolerances too tight and it is difficult for me to insert a few eyepieces. The second one is recessed and just doesn't work with one of my 2 scopes. The Blue Fireball works smoothly with all of my 1.25" eyepieces and allows me to use the adapter with both scopes.

      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 Heungsoo C.
      1491320383
      Apr 4, 2017

      5.0 A great eyepiece adapter!

      Pros:

      Cons:

      Comments:

      A great eyepiece adapter!

      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 Kevin F.
      1487429859
      Feb 18, 2017

      5.0 Excellent Adapter

      Pros:

      Cons:

      Comments:

      I was looking for a package on my SCT (to replace the 1.25” visual back) that would support both 1.25” and 2” accessories and thread to the SCT directly. This in combination with the Blue Fireball 2” to SCT Adapter performed the job admirably. Plus the benefit of having compression rings to minimize scratching on accessories. Also, the 2” to SCT Adapter is the perfect spacing for my Canon DSLR. Both products are excellent and high quality. Definitely recommend.

      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 Bob H.
      1487362675
      Feb 17, 2017

      4.0 Blue Fireball 2" to 1 1/4 " Eyepiece Adapter

      Pros:

      Cons:

      Comments:

      I like the adapter mostly. Eyepieces catch on the rim just below the copper ring and you have to jiggle them to get them slid all the way into the adapter. Maybe that is how they all work. Other than that I like the adapter. Service from Agena AstroProducts is top notch.

      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 John of Syracuse, NY.
      1422662400
      Jan 30, 2015

      5.0 Just what I needed

      Pros:

      Strong Construction,Easy to Use

      Cons:

      Comments:

      I bought a scope from an estate with a 2" focuser and the 2" to 1.25" adapter was missing, the Agena model was at a very reasonable price and was exactly what I needed.

      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 Les of Australia.
      1412812800
      Oct 8, 2014

      5.0 Blue Fireball 2" to 1.25" Eyepiece Adapter

      Pros:

      Easy to Use,Lightweight,Strong Construction

      Cons:

      Comments:

      This eyepiece adaptor is robust and solid enough to provide great security for my eyepieces and stability for using further adaptors in my imaging train. They remain light enough not to add to much additional weight to my system. The internal compression rings protects my eyepiece barrels from lock screw damage. Perfect for the price and great quality! I always shop with Agena for all my adaptors. Such a great range at excellent prices.

      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 MallinCam Jack of Pearl River, LA.
      1369958400
      May 30, 2013

      5.0 Great Product, Great Price, Great Service

      Pros:

      Strong Construction

      Cons:

      Comments:

      I had a customer in Norway who needed a 2" to 1.25" adapter for use with the camera I was selling him and his Meade telescope. I found this product on line, ordered it and it arrived quickly. It is well constructed and when the customer received it along with the other items I shipped to him, he was impressed with it as well.

      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 John of San Diego, CA.
      1368662400
      May 15, 2013

      5.0 Excellent product

      Pros:

      Strong Construction

      Cons:

      Comments:

      This is the second Blue Fireball product I've bought, and the quality is again excellent: very nice machining, superb fit & finish, and no slop or binding in actual use.

      I wouldn't hesitate to buy another one of their products, and Agena Astro is of course a great supplier.

      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 Star Gazer of Cameron, North Carolina.
      1348272000
      Sep 21, 2012

      5.0 An indispensable adapter

      Pros:

      Compact,Strong Construction,Easy to Use,Lightweight

      Cons:

      Comments:

      This is a great adapter to have handy near your telescope. It's lightweight, yet solid built. It has the brass eyepiece compression ring for secure installations and will not mar your eyepiece barrels. It's also threaded for filters, a great feature for added versatility.

      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 Tigerio of Uvalde, Texas.
      1320624000
      Nov 6, 2011

      5.0 Blue Fireball 2" to 1.25" Adapter

      Pros:

      Strong Construction,Accurate,Lightweight,Easy to Use

      Cons:

      Comments:

      Works well, Protects eyepiece from scares.

      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 unitron of Eaton, CO.
      1293408000
      Dec 26, 2010

      5.0 I would buy this product again

      Pros:

      Strong Construction,Accurate

      Cons:

      Comments:

      The centering was perfect from 2 to 1.25.

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

      This review was provided courtesy of AgenaAstro.com

    16. eric_zeiner

      eric_zeiner New Member

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      Review by Eric R. Zeiner of North Georgia, USA.
      1293062400
      Dec 22, 2010

      5.0 Great Quality!

      Pros:

      Strong Construction

      Cons:

      Comments:

      I purchased this adapter to replace a WO adapter that I had mis placed and this one worked just as well and did the job that it was meant to do. It is not the prettiest adapter in the world but at this price point and in the dark, I really do not think that cosmetics are an issue. I use this adapter in both my WO diagonal and my Pro Optic diagonal which are both high end dielectrics and not only did this adapter fit perfectly but it performed as it should.

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

      This review was provided courtesy of AgenaAstro.com

    17. Guest

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      Review by Al of Tasmania Australia.
      1292803200
      Dec 19, 2010

      5.0 A superior adapter I would instal again

      Pros:

      Strong Construction,Accurate,Compact

      Cons:

      Comments:

      All the members of the Astronomical Society of Tasmania who have used this adapter rate it superior with the internal copper ring easily holding the eyepiece with a simple turn that grips the shaft centrally without scoring the metal.We can not find anything to complain about

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

      This review was provided courtesy of AgenaAstro.com

    18. eric_zeiner

      eric_zeiner New Member

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      Review by Eric R. Zeiner of North Georgia, USA.
      1272326400
      Apr 26, 2010

      4.0 Very Functional Bargain

      Pros:

      Nice Finish,Strong Construction

      Cons:

      No Safety Undercut

      Comments:

      I needed a 2"-1.25" adapter for the Orion Astroview 100mm f/6 OTA that I just purchased used and thought that this would fill the bill. For the price it most certainly does and it will become a permanent part of my accessory kit. The finish is very nice, the weight and overall manufacturing quality is also very nice. It is not often that you find an adapter at this price point with brass compression rings. The only reason I did not give it 5 stars is that the end that goes into the focuser does not have a safety undercut and this would be more suited for use as a true EP adapter sitting in the top of a diagonal or Barlow. I just like the safety undercut as an added measure to prevent possibly several hundred dollars of EP and diagonal from hitting the deck. All in all though this is a great accessory at a great price.

      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 Alan of Brightwaters, New York.
      1243468800
      May 27, 2009

      4.0 Wonderful Solution!

      Pros:

      Strong Construction

      Cons:

      Comments:

      The adapter gets the job done very well, allowing me more eyepiece flexibility. Just what I needed, at the usual Agena bargain price. Note that the depth of the adapter may not be enough to prevent a 1.25" eyepiece or diagonal from contacting a 2" filter (ie. a minus violet filter in my situation) screwed into objective side of the adapter. The solution is to first put in the 1.25" eyepiece or diagonal, and then thread-on the filter just enough to avoid contact (I added a thin rubber O-ring onto the filter threading to take-up the slack and give a firm screwed-on feel).

      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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