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Blue Fireball 2" to 1.25" Eyepiece Adapter - High Profile # E-08

4.5 (10 Reviews) Read Reviews Write Review
Brand Blue Fireball
Part Number E-08
Availability available

Product Info

Manufacturer Description

This adapter allows you to use 1.25" eyepieces in 2" focuser tubes. It is threaded to accept standard 2" filters, so you can use your 1.25" eyepieces with 2" filters.

2" filters screwed onto a 2"-1.25" adapter with 1.25" eyepieces can be very convenient, since you don't need to unscrew and re-screw the filter every time you change eyepieces. However, many shorter 2"-1.25" adapters are usually not long enough to prevent the 1.25" eyepiece barrel from hitting the filter when the eyepiece is inserted into the adapter. Many expensive filters have been scratched and even cracked in this way!

This "High Profile" adapter from Blue Fireball provides the extra clearance needed to ensure that the 1.25" eyepiece barrel will not touch the filter. The adapter is 45mm in length. It provides 15mm of additional clearance compared to their standard low profile adapter; thus it also needs about 15mm of additional in-focus travel.

The adapter also has a brass compression ring that restrains the eyepiece and prevents marring of the eyepiece barrel by the metal set-screw. It weights on 2.4 oz and is a precision machined from black anodized aluminum.

Blue Fireball part number: E-08

Reviews

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

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      Review by Michael H.
      1495491815
      May 22, 2017

      5.0 NICE FOR THE PRICE.

      Pros:

      Cons:

      Comments:

      A compression ring should be "essential equipment" for a 1-1/4" adapter. This one is very reasonably priced and works just fine.

      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 Steve Cox
      1485457885
      Jan 26, 2017

      3.0 It's okay, but not great

      Pros:

      Cons:

      Comments:

      This is only an okay but not great product. Fit in my diagonal is looser than the GSO or Astrotech diagonals I currently have. Also, it's much lighter weight than competitive products, which might be a plus for some, but not me as it indicates softer aluminum which could be damaged easier. The crimp ring is also thinner and cheaper, and crimps unevenly, meaning eyepieces could be tightened off-center or canted.

      As for the high rise feature, while it will work on 1.25" eyepieces such my short f/l Orthos, it will not work for any dual-barrel 2"/1.25" eyepieces like the Ethos, as the thumbscrew is too short and too fat. The short and fat thumbscrew actually makes it difficult for me to grip and tighten in the dark on 1.25" eyepieces.

      I'll keep this as a spare, but I personally can't recommend Blue Fireball products if this is representative. If you're shopping for a high-rise 2-1.25" adapter, I suggest the Tele Vue Hi Hat.

      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 Diane B.
      1483457879
      Jan 3, 2017

      5.0 Blue Fireball Adapter

      Pros:

      Cons:

      Comments:

      Very happy with this adapter.

      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 Anthony of Port Chester, NY.
      1423267200
      Feb 6, 2015

      5.0 Great price good quality

      Pros:

      Lightweight,Strong Construction,Accurate

      Cons:

      Comments:

      I use this with my 10'' dob reflector, fit and finish excellent, great 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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      Review by slipfit of Millersville, TN.
      1348272000
      Sep 21, 2012

      5.0 Great adapter

      Pros:

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

      Cons:

      Comments:

      Got this to use with my ES eyepieces with a filter. The ES eyepieces have a long barrel, when using a standard adapter the eyepiece will hit the filter. With this adapter this does not happen.

      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 Martin of South Dakota.
      1320624000
      Nov 6, 2011

      3.0 Good Adapter.

      Pros:

      Lightweight,Accurate

      Cons:

      Comments:

      This is a good adapter but nothing special. If you are looking for a average cost, 2" to 1 1/4" adapter, then this one will work fine.

      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 Dave of Valparaiso, IN.
      1294012800
      Jan 2, 2011

      5.0 Nicely machined product

      Pros:

      Flawless finish,Compression Ring,Strong Construction

      Cons:

      None

      Comments:

      I purchased this compression style eyepiece for my APO Refractor since its reducer wasn't a compression type. The adapter has a angled flange so it won't slip or loosen, very nice.
      Also the fit is perfect in the focuser.
      The finish is really nicely done & durable.
      I cannot find anything at all wrong that I could complain about with this product.

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

      5.0 A Must

      Pros:

      Strong Construction

      Cons:

      Comments:

      Allows the use of 2" filters with my 1.25" eyepieces. Saves on needing two sizes of filters. The height prevents 1.25" eyepieces from hitting my 2" filters.

      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 Top Jimmy of Ottawa, ON.
      1265932800
      Feb 11, 2010

      4.0 Extension and adapter in one

      Pros:

      Strong Construction,Accurate

      Cons:

      Comments:

      I have a couple 2" filters that I like to put on the 2"-to-1.25" adapter for convenience. I found however that some of my eyepieces have especially long tubes that insert so far that they actually hit the filter on a normal adapter! Ouch. This adapter is perfect, adding 20mm to the eyepiece position as opposed to the 10mm that most adapters add. I also recently started using this with a short focus refractor so that I can achieve focus when not using a diagonal. A simple but well constructed item, this adapter is made of black anodized machined aluminum. It has a brass compression ring, and interior threading for a 2" filter and to cut reflections. Not as sexy looking as others, but a solid and affordable product.

      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 Poppa Chris of Denham Springs, LA.
      1265846400
      Feb 10, 2010

      5.0 Well made accessory

      Pros:

      Strong Construction,Accurate

      Cons:

      Comments:

      I use this adaptor mainly when I use a varialbe density polarizing filter with my 1.25" eyepieces adapted to a 2" diagonal on my 11" SCT.
      Without the "high-hat" feature this filter eyepiece combo struck the mirror of my 2" diagonal causing a small but highly irritating scratch to the coating on the mirror. While the diagonal is OK for use (luckily doesn't degrade the use of my 2" eyepieces too noticeably), I resolved to never again use this combo without providing some space for the extra thick filter. Overall the construction of the adapter is very good. This being a simple device I won't go into any further technical merits as most devices currently on the market from major manufacturers such as this are also well made.

      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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