Cloud Break Optics

USED - DIOPTRX™ 2.50

USED - DIOPTRX™ 2.50 - Main image
$88.44 $134 In stock

Category: Used Gear

USED GEAR INFORMATION

The DIOPTRX is in great condition! hardly used appearance.

Description

Got astigmatism? Get the "cure".

Your telescope's focuser is used to compensate for your near- or far-sightedness; DIOPTRX™ compensates for your astigmatism. These units attach and lock onto the tops of over 20 long eye-relief Tele Vue eyepieces to achieve the sharpest full-field viewing possible. DIOPTRX™ models are available in ¼ to 3½ diopter (¼ steps from ¼ to 2½ diopters, the ½ diopter steps to 3½-diopters), and are rotatable for tuning to the best orientation. A series of engraved letters on the barrel helps to monitor orientation. Simply choose the DIOPTRX™ model that matches your eyeglass prescription for astigmatism. All lenses are multi-coated glass in anodized aluminum housings with rubber eyeguards.

Benefits of using Dioptrx over eyeglasses

1. You're more likely to see a sharper, higher contrast image, because:

A. The Dioptrx is always completely aligned to the eyepiece optics, eliminating aberrations from a decentered mismatch of eyeglass power and astigmatic axis.

B. Dioptrx can be rotated to exactly compensate for the astigmatic axis angle in real time, since both head angle and age can vary your eyesight astigmatic angle.

C. Dioptrx likely has better multi-coatings than eyeglasses, and certainly is better in transmission and reflection reduction than uncoated eyeglass.

D. Dioptrx is more likely to be cleaner than eyeglasses, which may have scratches and smudges from constant use and wear and tear.

E. Dioptrx allows seeing your normal maximum contrast that eyeglasses can diminish (remove your eyeglasses and see how contrast improves in normal vision).

2. You're more likely to see the full field in 100° Ethos eyepieces because your eyeglasses are more limiting in "effective eye-relief".

When attached to any of the following long eye relief Tele
Vue eyepieces, DIOPTRX compensates for your eyesight
astigmatism. Most of these eyepieces have long eye relief
for eyeglass wearers, so simply adding DIOPTRX to
replace your eyeglasses should leave you with comfortable
eye relief. DIOPTRX corrects astigmatism only, since
focusing compensates for your power correction.

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When it ships

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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 (5.0 / 5 · 5 reviews)

Claire J. ★★★★★

The diopter ring clicks into place with satisfying precision, and it corrected my astigmatism blur perfectly on my first try. For a used piece, the lens surfaces are spotless and the threads engage smoothly.

Grace ★★★★★

I was skeptical about used optics but this DIOPTRX looks barely touched, the threads are clean and smooth. It snapped right onto my eyepiece and finally makes the stars look like points instead of little commas.

Zoe Z. ★★★★★

My astigmatism was making star-hopping a chore, but this used DIOPTRX snaps the view into sharp focus without needing to crank the focuser endlessly. The 2.50 strength is spot-on for my eyes, and it looks barely touched.