The Sharpstar 1.25" (Cheshire) collimating eyepiece is a precision tool designed for adjusting the optics of reflector telescopes. It allows you to quickly check and correct the mirror alignment before observing or taking astrophotography. Simply place it in the focuser to easily assess the position of the primary and secondary mirrors and any deviations from optimal collimation. It can be used not only with Newtonian and Cassegrain telescopes, but also with other optical designs requiring precise alignment of the optical axis.

Key features

• mounting diameter 1.25"
• intended mainly for Newtonian and Cassegrain telescopes
• can also be used in other telescope designs
• also suitable for telescopes with built-in corrector
• the matte reflective surface inside the eyepiece ensures correct reflection images
• made of aluminum, durable and lightweight

Set components

• Sharpstar 1.25" collimating eyepiece

Technical parameters

• mounting diameter: 1.25"
• material: aluminum
• application: collimation of reflector telescopes (Newton, Cassegrain and other optical structures)