Cloud Break Optics

3mm Long 48mm Spacer Ring (SFE-M48-003)

3mm Long 48mm Spacer Ring (SFE-M48-003) - Main image
$10.5 $14 In stock

Category: Astrophotography Accessories

Description

This is a precision, CNC machined 48 mm ID spacer ring that is 3 mm thick. It provides 3 mm of additional space between the field flattener and the imaging camera. 

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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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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)

Leo Q. ★★★★★

I needed exactly 3mm more back focus to get my stars sharp across the frame, and this ring threaded on perfectly without any binding. The CNC machining is precise and the anodized finish matches my other gear.

Scarlett A. ★★★★★

The machining is clean and the ring sits perfectly flat, which is what you want when you’re chasing that last millimeter of spacing. It did exactly what it was supposed to for my setup, though I wish it came in a set of different thicknesses to tweak faster.

Amelia ★★★★★

Finally got my back focus exactly right with this 3mm spacer—the threads are perfectly smooth and it seated flush against the flattener without any wobble.

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