SV121 red laser collimator perfectly align your reflector optics with our second-generation collimator, SV121 collimation eyepiece can be used for precisely collimating the Newtonian and schmidt-cassegrain reflector telescopes for better image quality. SVBONY moon filter suitable for 1.25 inches telescope eyepieces, reducing the amount of light entering the eyepiece, increases the contrast between the moon and the star, allowing you to see more details about the moon and the stars.
