ITEM NAME:1Pcs 1.25" Cheshire Collimation Eyepiece for Refracting Refractor Telescope Long Description: Special eyepiece fits into 11/4" focusers or diagonals. For aligning optics of Newtonian telescope reflectors. Collimation eyepiece is more accurate than the simple collimation tool. When collimating a refractor you should put the Cheshire directly into the focuser. With dustproof and moistproof rubber cover. Specification: Material: Aluminium Alloy Color: Black Caliber Diameter: 1.25 inch Suitable for Refracting Telescope Length: Approx. 154mm Package Includes: 1 Piece 1.25" Collimation Eyepiece.Collimation eyepiece is more accurate than the simple collimation tool. 1 Piece 1.25" Collimation Eyepiece. When collimating a refractor you should put the Cheshire directly into the focuser. Special eyepiece fits into 11/4" focusers or diagonals.
