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Baader T2 Extension Tube - 7.5mm # T2-25c 1508155

4.9 (16 Reviews) Read Reviews Write Review
Brand Baader Planetarium
Part Number 1508155
Availability available

Product Info

Manufacturer Description

T-2 Extension Tubes enable you to securely set or vary the spacing between T-2 components. This # T2-25C # 1508155 T-thread extension or spacer tube provides 7.5mm of extension. It features an internal T-2 thread (M42x0.75) at one end and an external T-2 thread at the opposite end. Full internal threading and blackening kills any stray light reflections. Maximum diameter = 47.5mm.

Reviews

4.9 (Based on 16 Reviews) 100% of reviewers recommended this product.
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    1. Guest

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      Review by Charles A.
      1546402304
      Jan 1, 2019

      5.0 Baader T2 Extension Tube - 7.5mm # T2-25C

      Pros:

      Cons:

      Comments:

      Nice extension works great.

      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 Brian C.
      1533388596
      Aug 4, 2018

      5.0 Worked as it should

      Pros:

      Cons:

      Comments:

      Fast delivery and fits great to increase my Q barlow magnification with the Baader Helical focuser and T adapter

      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 Ross S.
      1530759378
      Jul 4, 2018

      5.0 Agena Astro

      Pros:

      Cons:

      Comments:

      This is a great place to buy astronomy gear. Fast shipping, never a problem with these folks.I always look here first for adapters and the like.

      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 Victor F.
      1522498510
      Mar 31, 2018

      5.0 Great quality

      Pros:

      Cons:

      Comments:

      Well made and 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

    5. Guest

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      Review by Andrew M.
      1516558352
      Jan 21, 2018

      5.0 Baader astronomical accessories

      Pros:

      Cons:

      Comments:

      I have been buying Baader accessories for many years and I have always found them to be of superior quality to others on the market. I know that if I buy a Baader accessory it will be much more than just satisfactory.

      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 Luke V.
      1514403242
      Dec 27, 2017

      5.0 Another fine Baader T2 item

      Pros:

      Cons:

      Comments:

      Solid quality as we have come to expect from Baader and their T2 systems. This extension was required to add height to the 29mm Baader Budget 1.25" eyepiece holder. Certain eyepieces, most notably the Nagler 2-4 Zoom, have such long barrels that they contact the prism surface of the T2 Baader Zeiss prism diagonal part when used with that Baader EP holder.

      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 Douglas729
      1497894057
      Jun 19, 2017

      5.0 Baader Modular Extension Rings

      Pros:

      Cons:

      Comments:

      Investing in rings, Change Locks and extension tubes can save you a lot of money on more eyepieces by varying your magnification intervals with a 1.25x, 2x or 3x barlow lens...in fact I only use one pair of excellent 25mm Zeiss eyepieces.

      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 Merrill G.
      1495684188
      May 24, 2017

      5.0 Does the Job

      Pros:

      Cons:

      Comments:

      Afocal projection for my revolution imager was easy with the purchase of this adapter, the /T-2 Budget Eyepiece Holder, and the T-Adapter HTA43/T2. Just screwed them on top of my Hyperion 17mm and popped in the video camera. Worked great for showing moon images at a star party.

      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 william n.
      1491906104
      Apr 11, 2017

      5.0 T2 entender

      Pros:

      Cons:

      Comments:

      Real fine product. fit my product good and works well.

      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 Michael M.
      1483457873
      Jan 3, 2017

      5.0 Well made extender.

      Pros:

      Cons:

      Comments:

      I bought two of these to use for spacing between camera and focal refucer. They have male thread one end female thread on other

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

      This review was provided courtesy of AgenaAstro.com

    11. Jan Owen

      Jan Owen New Member

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      Review by Jan of Sun City West, AZ.
      1435363200
      Jun 26, 2015

      5.0 A helpful part...

      Pros:

      No

      Cons:

      No

      Comments:

      I use several of these spacers (in two lengths) to achieve the proper back focus on one of my SCTs, in conjunction with a reducer/corrector. This, and the shorter spacer, working together, allowed me to achieve exactly the back focus I needed, and the total system works perfectly. Doesn't get any better than that.

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

      This review was provided courtesy of AgenaAstro.com

    12. Jan Owen

      Jan Owen New Member

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      Review by Jan of Northwest of Phoenix, AZ.
      1422662400
      Jan 30, 2015

      5.0 Works perfectly

      Pros:

      Easy to Use,Compact,Accurate

      Cons:

      None

      Comments:

      I use it to space lens components to achieve the correct back-focus with visual accessories on my SCTs...

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

      This review was provided courtesy of AgenaAstro.com

    13. Jan Owen

      Jan Owen New Member

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      Review by Jan of Sun City West, AZ.
      1413590400
      Oct 17, 2014

      5.0 Another helpful Baader accessory...

      Pros:

      Strong Construction,Easy to Use

      Cons:

      Strong Construction,Easy to Use

      Comments:

      I used several different Baader parts to achieve the exact back focus needed between my SCT's reducer/corrector, Baader T-2 star diagonal, and the focal plane...

      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 Astrojock of Calgary Alberta Canada.
      1376006400
      Aug 8, 2013

      4.0 Nifty Extension Tube

      Pros:

      Easy to Use,Compact

      Cons:

      Comments:

      Nice for adjusting spacing between the Lunt Solar scope blocking filter T thread and the camera sensor.

      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 Big Ugly Guy of Tucson, AZ.
      1375488000
      Aug 2, 2013

      5.0 Simple accessory that just works

      Pros:

      Lightweight,Easy to Use,Accurate,Strong Construction

      Cons:

      Comments:

      This is a basic, no frill item that provides the correct spacing for your T thread imaging train. The connections are solid and well machined. Although simple, these spacers have a very good "Bang for the buck".

      If you need this type of spacer, look no further.

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

      5.0 Baader T2 Extension Tube

      Pros:

      Accurate,Strong Construction

      Cons:

      Comments:

      This is a common product. 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

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