Cloud Break Optics

2" Extension Tube (ET080)

2" Extension Tube (ET080) - Main image
$11.98 $19.96 In stock

Category: Astrophotography Accessories

Description

80mm Long 2" Extension Tube

Provides an additional 80 mm of  back focus. The 2” receptacle is 35mm deep so if the item you are inserting is longer than 35mm , add the difference to 80 mm to determine the actual amount of extension. This all aluminum extension tube uses a brass compression ring and thumbscrew for snugness. 

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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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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 (4.6 / 5 · 5 reviews)

Emma Q. ★★★★★

This gave me exactly the extra 80mm I needed to reach focus with my new field flattener. The 35mm deep receptacle held my coma corrector securely.

Miles D. ★★★★★

Finally, an extension tube that actually threads smoothly onto my focuser without any play. The 35mm deep receptacle held my coma corrector securely, and the extra 80mm of back focus made my field flattener reach focus perfectly.

Julian X. ★★★★★

I needed more back focus to reach proper spacing with my camera setup, and this 80mm extension tube did the trick perfectly. The 2" receptacle is threaded smoothly and holds everything tight without any slop.

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