OAG Extension Tube

$34.84 ~~$52~~ In stock

Category: Astrophotography Accessories

Description

12mm or 20mm OAG Extension Tube for use with SXV OAG and SXVR Cameras

(NOTE: 12mm may only be compatible with SXVR-H18)

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Matthew ★★★★★ Oct 20, 2026

Installing this 20mm extension tube freed up just enough space to reach perfect focus with my filter wheel setup. The threads are smooth and the anodized finish matches my other gear exactly.

Alexander N. ★★★★★ Oct 19, 2026

I was worried about back focus issues with my SXVR-H18, but the 12mm tube threaded on perfectly and gave me a solid connection. Stars are much tighter across the frame now.

Sebastian ★★★★★ Oct 18, 2026

Finally got the 20mm version and it threaded perfectly onto my SXVR camera without any adapter fuss. The black anodized finish matches the rest of the gear nicely.