Celestron 1.25" Crossaim Illuminated Reticle Eyepiece

The Celestron 1.25" Crossaim Illuminated Reticle Eyepiece is a specialized eyepiece designed for astronomical observations. It features an illuminated reticle, which is a pattern of lines or markings that can be used for precise measurements or alignments. The 1.25" refers to the diameter of the eyepiece barrel, which is a standard size for most telescopes. This means that it will fit telescopes with a 1.25" eyepiece holder.

This eyepiece can be useful for tasks such as aligning a telescope mount, measuring the apparent size of celestial objects, or aiding in astrophotography.

Product Features in Detail

Celestron 1.25" Crossaim Illuminated Reticle Eyepiece

The Celestron 1.25" Crossaim Illuminated Reticle Eyepiece is ideal for accurate polar alignment. This eyepiece is designed with an adjustable red LED light brightness control that illuminates crosshairs and preserves night vision. A respectable 40° viewing angle and anti-reflection fully coated optics produce images that are bright and clear, with expansive views. A red double crosshair aiming reticle has an open center aiming square that won't obstruct small or faint objects, and is ideal for accurate initial polar alignment of the mount or to keep guide-stars perfectly centered during imaging sessions. Its LED illuminator runs on three included 1.5V alkaline button batteries, and is easy to use with a single control knob that turns it on and off with a rheostat that controls the reticle brightness to protect night-adjusted vision.