SKU: 51387306566

Alpine Astronomical Baader UFC S70 15-20mm Dovetail VariLock Extension

$9783.00 $10870.00
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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22

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Description

Alpine Astronomical Baader UFC S70 15-20mm Dovetail&nbspVariLock ExtensionPart of the UFC Filter Changer System Fits between Base and Telescope Adapter Variable 15 20mm Additional Focal Length Stackable with Other Extensions An optional part of their Universal Filter Changer System, the Alpine Astronomical Baader UFC S70 15 20mm Dovetail &nbspVariLock Extension is placed between the UFC filter base and the telescope mounting adapter to provide an additional focal length if your camera system requires it. Available in

  • Part of the UFC Filter Changer System
  • Fits between Base and Telescope Adapter
  • Variable 15-20mm Additional Focal Length
  • Stackable with Other Extensions

An optional part of their Universal Filter Changer System, the Alpine Astronomical Baader UFC S70 15-20mm Dovetail &nbspVariLock Extension is placed between the UFC filter base and the telescope mounting adapter to provide an additional focal length if your camera system requires it. Available in multiple lengths, this extension can be stacked with other sizes to achieve the perfect position to capture the best images. This VariLock version has a continuously adjustable focal length from 15 to 20mm with a millimeter scale that allows precise and repeatable fine tuning.

In the Box
Alpine Astronomical Baader UFC S70 15-20mm Dovetail &nbspVariLock Extension
  • 6 x Set Screws
  • Limited 2-Year Warranty

    • All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 51387306566

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    4.5 ★★★★★
    Based on 9 reviews
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    Product Reviews
    J
    Verified Purchase
    JB
    San Leandro, US
    ★★★★★ 1
    Not for tough chewers at all!!!
    Size: 10.5 inch Rubber Flex Tread, Size: 10.5 inch Rubber Flex Tread
    5 minutes in and it's destroyed. Very disappointing.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 21, 2026
    N
    Verified Purchase
    Nicky S
    Dallas, US
    ★★★★★ 5
    Great chew toy
    Size: 10.5 inch Rubber Flex Tread
    This is my second time buying the Tonka rings. My dog loves this chew toy. It does take him a bit to destroy them. I give this toy to him as a reward otherwise it be destroyed in 3 days. I have a pitty. So other dogs it should last longer. They are shin whackers and hurt when they connect. So I make sure to watch the dog and toy around small kids and elderly to be safe. They are heavy and made well.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on October 29, 2025
    A
    Verified Purchase
    Ann
    San Leandro, US
    ★★★★★ 5
    Finally a toy we can leave out!
    Size: 10.5 inch Rubber Flex Tread, Size: 10.5 inch Rubber Flex Tread
    There are very few toys that we can leave out for our 11 month old golden. Which is a shame because as a small puppy, we taught him to bring us a toy to initiate play instead of nipping. Ropes or stuffies never lasted more than a few minutes so they always had to be taken away. One time he brought us a benenbone to play tug. So I tried this as a last resort. Finally something we can keep out for him! It’s not completely indestructible. He has figured out how to pull bits of tread off. But he chewed hard on it for a solid 20 minutes and it’s still intact with the exception of a few small tread pieces. Can’t say that for 99% of the other dog toys on the market! UPDATE: OK, so it's definitely not indestructible. After a few days of dedicated gnawing, he has almost chewed through the yellow ring so we can't leave him too unsupervised with it. I'm still going to leave it as 5 stars since it's the best tug toy that I have found so far and we have tried a lot! I may buy another one and just make sure I don't let him freely chew on it for any length of time.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 1, 2023
    E
    Verified Purchase
    eave4sean
    Fort Morgan, US
    ★★★★★ 3
    Really wanted this toy to be better...
    Size: 10.5 inch Rubber Flex Tread
    I got this toy because I have 3 large dogs that all like to pull things. I can't always play with them even though they follow me everywhere wanting to play, so I saw this toy and thought it would be good because it would give them something they can tug away at with each other. I saw the thick rubber and thought it would last awhile, but I was wrong. My German Shepherd and Pyrenees mix chewed though the first tire rather quick, and before I realized, I was finding chunks of tire around the house and yard. Thankfully, none of them tried to eat it. It seems like it could be a good toy for an aggressive chewer IF they are smaller and not as strong as these large dogs are, but it did not hold up long to mine.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 23, 2024
    C
    Verified Purchase
    Craig Curran
    Draper, US
    ★★★★★ 5
    Longest living toy ever!
    Style: Variety Pack - Large (3-pack), Style: Variety Pack - Large (3-pack)
    This review is 2 years in the making! Purchased over 2 years ago, all three are still in active play, still squeek, with no holes.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 18, 2026

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