Cloud Break Optics

Aline Telescope Collimation Eyepieces

Aline Telescope Collimation Eyepieces - Main image
$6.37 $9.95 In stock

Category: Observing Aids

Brighter than any Cheshire eyepiece
for a fraction of the cost!

A Must for Rich Field and Fast Newtonians & Dobsonians

Description

Look Into Your Telescope Through an Aline and you see a bright white circle surrounding the image of your eye's pupil, making it easier to center the primary and secondary mirrors, which is especially important for aligning rich field and fast Newtonian and Dobsonian telescopes.

1000's of Alines are in use around the world (yes thousands) since Rigel Systems introduced the first retroreflector collimation eyepiece in 1995. Simple in design, Aline uses an ultra-reflective microprism retroreflector and the light gathered by your telescope to produce a brighter image than "classical" cheshires or other so called "reflective" cheshires (which are retroreflector collimation eyepieces -- not cheshires) that use less reflective microsphere retroreflectors.


BONUS Included Free! Retro-Reflective Mirror Centering Spot

Enclosed with your Aline is a highly reflective mirror center spot 5/8” diameter, to update your mirror center spot for better visibility with your Aline during collimation, especially under low light levels.


Telescope Collimation Links

Aline Instructions

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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 (5.0 / 5 · 5 reviews)

Hazel ★★★★★

My old Cheshire was a dim nightmare on my fast f/4 dob, but this one is genuinely brighter and made dialing in the secondary almost fun. For the price, the clarity is honestly shocking.

Zoe ★★★★★

Finally, an eyepiece that lets me actually see the crosshairs against a faint nebula—the bright illuminated reticle is a game-changer. Setup was quick and it stays secure in the focuser, no wobble.

Robert ★★★★★

The bright crosshairs made aligning my 12" Dob's mirrors so much easier than with my old cheap collimator. I had my scope perfectly centered in under five minutes.