Autocollimator

$36.26 ~~$49~~ In stock

Description

2" and 1.25" Autocollimator

Astrosystems autocollimator is the only autocollimator on the market that is precision laser aligned to better than 3 arc minutes.

The Autocollimator is used to fine tune the optical alignment after using the LightPipe/SightTube or a laser collimator. It utilizes a flat mirror that shows multiple reflections through the optical system. This is 2-4 times the accuracy of a Cheshire, LightPipe or laser collimator. The adjustment screws are then locked to insure lifetime accuracy. Includes a 14 page instruction booklet.

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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 (4.6 / 5 · 5 reviews)

Scarlett B. ★★★★★ Oct 21, 2026

I needed to check my secondary mirror alignment, and this autocollimator's precision laser alignment made it incredibly straightforward. Both the 2" and 1.25" barrels fit my focuser perfectly.

Daniel P. ★★★★★ Oct 20, 2026

The laser alignment to under 3 arc minutes made dialing in my secondary mirror much quicker than with my old cheshire. I'm seeing tighter star images now that everything is collimated properly.

Riley ★★★★★ Oct 19, 2026

Finally got my mirrors squared away thanks to the precision laser alignment on this tool. The fit in both my 2" and 1.25" focusers is snug and stable, which makes dialing in collimation a breeze.