Celestron 1.25-inch Cheshire Collimation Eyepiece The Celestron Collimation Eyepiece is a 1.25-inch Cheshire-style sight tube for aligning the mirrors of a Newtonian reflector. It also serves as an alignment aid for Schmidt-Cassegrain telescopes. Inserted in the focuser in place of an eyepiece, it lets you centre the optical components quickly and…
Manufacturer model: Celestron Collimation Eyepiece 1.25" · Specifications checked against manufacturer data on 2026-11-03
The Celestron Collimation Eyepiece is a 1.25-inch Cheshire-style sight tube for aligning the mirrors of a Newtonian reflector. It also serves as an alignment aid for Schmidt-Cassegrain telescopes. Inserted in the focuser in place of an eyepiece, it lets you centre the optical components quickly and accurately, without a star.
| Type | Cheshire collimation eyepiece |
|---|---|
| Barrel | 1.25 inch |
| Use | Newtonian collimation; Schmidt-Cassegrain alignment aid |
Celestron Collimation Eyepiece 1.25"
1.25-inch focusers. Length and weight not published.
| Barrel (in) | 1.25 |
|---|
Data sheet
Celestron 1.25-inch Cheshire Collimation Eyepiece The Celestron Collimation Eyepiece is a 1.25-inch Cheshire-style sight tube for aligning the mirrors of a Newtonian reflector. It also serves as an alignment aid for Schmidt-Cassegrain telescopes. Inserted in the focuser in place of an eyepiece, it lets you centre the optical components quickly and…
Manufacturer model: Celestron Collimation Eyepiece 1.25" · Specifications checked against manufacturer data on 2026-11-03
