Professional Collimation Tool: This Short version collimation eyepiece is perfect for achieving precise alignment in Newtonian and Schmidt-Cassegrain reflector telescopes(SCTs)enhancing image quality for clearer and sharper views
Visual Accuracy: This collimator for mirror reflector telescopes features a 45 degree plate making it easier than ever to achieve precise visual alignment; Designed to help you get the clearest views of the night sky with confidence
Alignment is Easy: Directly fits standard 1.25 inch telescope focusers; Simply cap the telescope remove the diagonal and insert the eyepiece for instant collimation checks even for beginners
Wider 58 Degree Field of View: The Alstar 1.25 Inch 58-Degree 4 mm wide angle telescope eyepiece is designed for astronomy enthusiasts; Offering a focal length range of 2.5 mm to 25 mm and a 58-degree wide field of view to capture more celestial details
Standard 1.25 Inch Barrel and Thread: Compatible with any telescope equipped with 1.25 inch focuser and the 1.25 inch female thread can also be connected with 1.25 inch telescope filter or other 1.25 inch telescope accessories; Whether for planetary observation or deepsky exploration this eyepiece delivers sharp and clear images meeting your high standards for stargazing