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.
Specifications
Type
Cheshire collimation eyepiece
Barrel
1.25 inch
Use
Newtonian collimation; Schmidt-Cassegrain alignment aid
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