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Blue Fireball 1.25" Extension Tube with 1.5" Extension # X-10

5.0 (8 Reviews) Read Reviews Write Review
Brand Blue Fireball
Part Number PAAR-BF-X-10
Availability

Product Info

Manufacturer Description

Description/Uses:

  • Adds 38.1mm (1.5") of back-focus travel to your telescope focuser
  • Fits standard 1.25" eyepiece tubes in telescopes and accessories like diagonals
  • With this, eyepieces and accessories that you may not have been able to use because your telescope tube was too short are usable again

Features:

  • Precision machined from aluminum and black anodized
  • Threaded to accept standard 1.25" astronomy filters
  • Features a brass compression ring so the inserted accessory will not be scratched or dented by the locking thumbscrew

Specifications:

  • Total Length = 2.41" (61.1mm)
  • Outside Length of Upper 1.25" Barrel = 1.5" (38.1mm)
  • Inside Length of Upper 1.25" Barrel = 1.42" (36.1mm)
  • Length of Lower 1.25" Barrel = 0.91" (23mm)
  • Maximum Outer Diameter (Excluding Thumbscrew) = 1.5" (38mm)
  • Thread Specification (Telescope End) = M28.5x0.6 Female
  • Thread Specification (Thumbscrew) = M4x0.7 Male
  • Weight = 1.6oz (45g)

Reviews

5.0 (Based on 8 Reviews) 100% of reviewers recommended this product.
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    1. Guest

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      User Notes:
      Review by Michael W.
      1547264008
      Jan 11, 2019

      5.0 It works to correct Crayford focuser.

      Pros:

      Cons:

      Comments:

      My Crayford focuser was too short to reach focus. This worked to resolve that problem. It also gave me a shorter close focus distance. My close focus was 70 feet, now it is 30 feet.

      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 Jason S.
      1543331886
      Nov 27, 2018

      5.0 High Quality 1-1/4 inch Extension

      Pros:

      Cons:

      Comments:

      As always, shipping was fast from Agena. You can expect high quality from Blue Fireball products and the 1-1/4 inch extension I needed for my guide scope camera did not disappoint. The fit has no slop, the finish is top notch, and the brass compression ring avoids damage to the ASI-290 mini guide camera. I am very satisfied with this purchase.

      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 Isaac S.
      1540375325
      Oct 24, 2018

      5.0 Good

      Pros:

      Cons:

      Comments:

      Good

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

      This review was provided courtesy of AgenaAstro.com

    4. Bigfoot

      Bigfoot New Member

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      Review by Robert Z.
      1537085475
      Sep 16, 2018

      5.0 Just perfect

      Pros:

      Cons:

      Comments:

      This extension tube was needed to allow my Explore Scientific 1-1/4", 2X focal extender to reach focus with my DSLR. I like the generous-sized locking knob.

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

      This review was provided courtesy of AgenaAstro.com

    5. JoeinWV

      JoeinWV New Member

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      Review by Joseph M.
      1515721605
      Jan 11, 2018

      5.0 Good value

      Pros:

      Cons:

      Comments:

      Works good, nice that it has the compression ring.

      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 Steven C.
      1507922539
      Oct 13, 2017

      5.0 2 inch 1.25 extension tube

      Pros:

      Cons:

      Comments:

      The product solved my problem of getting the additional back focus that I required.

      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 david m.
      1496410851
      Jun 2, 2017

      5.0 A LITTLE MORE LENGTH

      Pros:

      Cons:

      Comments:

      I bought a new gso focuser for my xt8 and needed a little more travel on the back end. This works good.

      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 Dan
      1483587581
      Jan 4, 2017

      5.0 Like the ring clamp

      Pros:

      Cons:

      Comments:

      I use this extender with my Vixen R130 Newtonian reflector in place of the screw-on extender supplied with the scope because the Blue Fireball has a nice ring clamp rather than thumb screws to secure the eyepiece. Build quality is very good and it works like a charm.

      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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