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Baader VariLock 46: Variable Length T-2 Extension Tube 29-46mm # T2-25V 2956946

5.0 (9 Reviews) Read Reviews Write Review
Brand Baader Planetarium
Part Number 2956946
Availability available

Product Info

Manufacturer Description

Baader's New VariLock T-2 Extension Tubes give you complete adjustability to enable you to exactly set or vary the spacing between T-2 components. Perfect for exact positioning of reducers, coma correctors, and other optical or imaging system components.

The VariLock extension tubes feature an accurately engraved graduated scale for an easy visual determination of the tube length (0.5mm graduations). Simply rotate the inner tube until the desired length is reached, then tighten the lockring with the included spanner wrench.

Full internal threading and blackening kills any stray light reflections. 2" OD enables use in any 2" system.

The Varilock 46 is also perfectly suited for setting the correct spacing of the new Baader RCC-I coma corrector onto DSLRs (when adjusted to 36.5mm).

As an added bonus, the external T-threaded portion can be removed and replaced with a dovetail ring (included) that inserts into standard camera T-rings, for use with DSLRs.

Reviews

5.0 (Based on 9 Reviews) 100% of reviewers recommended this product.
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    1. Guest

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      Review by Brian G.
      1548206897
      Jan 22, 2019

      5.0 Ideal Variable Spacer

      Pros:

      Cons:

      Comments:

      When changing imaging cameras with slightly different back focuses, I was continually looking for various spacers to get the distance 'close'. This well engineered product allowed me to just dial in the new spacing with very little effort.

      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 William E.
      1498855766
      Jun 30, 2017

      5.0 Nice Accurate Method To Set Backfocus

      Pros:

      Cons:

      Comments:

      Dialed in the settings I needed and tweaked with dial calipers, beats trying to get combinations of rings to work for my CCD camera.

      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 Henry K.
      1488179611
      Feb 26, 2017

      5.0 Ideal to get the backfocus right for reducers / flatteners

      Pros:

      Cons:

      Comments:

      Very well constructed. Even comes with screw-on end cap which is a nice touch. Now, please make one for M48...

      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 Michael M.
      1483215222
      Dec 31, 2016

      5.0 usefull piece of equipment

      Pros:

      Cons:

      Comments:

      Works great for getting right distance between ccd chip and focal reducer. Just dial in distance you need and lock it down with the wrench provided with it.I had to use a t-2 extension and the variable lock to get my distance. makes for a very ridgid setup with no flex for camera to scope

      Bottom Line: Would you recommend this item? Yes
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      This review was provided courtesy of AgenaAstro.com

    5. Guest

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      Review by Arsenio B.
      1483153063
      Dec 30, 2016

      5.0 Baader VariLock T-2 Extension Tube

      Pros:

      Cons:

      Comments:

      Perfect, allows setting back focus to the optimal distance.

      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 Dan of Gaithersburg, MD.
      1369958400
      May 30, 2013

      5.0 Must have for your AP toolkit

      Pros:

      Accurate,Lightweight

      Cons:

      Comments:

      I use this to take up the backfocus in one of my imaging setups (an f/4 imaging newt and a DSLR camera), where I use the Baader Rowe coma corrector. I don't use an off-axis guider, so I needed this to take up the backfocus that the OAG otherwise would. Works like a charm, and my field is flat and coma-free.

      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 raginar of Rapid City, SD.
      1360368000
      Feb 8, 2013

      5.0 Great, do your math twice!

      Pros:

      Strong Construction,Easy to Use,Lightweight

      Cons:

      Comments:

      I bought this to use with an ATFF and an ATCC with my new camera setup. Unfortunately, I did the math wrong and it turned out I needed a shorter one. My loss! But, this is an awesome product. It's orthogonal and it's solid! Definitely takes the guessing out of the correct spacing required.

      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 rpineau of Kensington, CA.
      1348272000
      Sep 21, 2012

      5.0 Perfect for astroimagers

      Pros:

      Accurate,Strong Construction,Easy to Use

      Cons:

      Comments:

      The Baader Varilock is the perfect tools when you need a non standard back focus adjustment for you field flattener or focal reducer. It's easy to set and the locking is very strong ensuring that the set length will not change over time.

      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 Rob Knox of Brisbane Australia.
      1320710400
      Nov 7, 2011

      5.0 Fantastic equipment...

      Pros:

      Strong Construction,Compact,Easy to Use,Lightweight

      Cons:

      Comments:

      Had an issue the other day in that I needed some variable distances between two camera's and my field flattener. Tried everything and wasted a bit of cash until I used the Baader Varilock which solved my problems. Excellent construction and easy to use. Managed to get very accurate measurements to fill the space between my camera and my field flattener. Only wish I bought this first up.....

      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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