Meade Series 4000 Plössl 9mm Wireless Illuminated Reticle Eyepiece (1.25”) is a special purpose eyepiece for guiding during long exposure astrophotography. It features high quality 4-element, fully-coated Plössl optics and a fully illuminated double-crosshair with two concentric targeting circles. For use with a Meade Off-Axis Guider.
The eyepiece includes precision micrometric adjustable X–Y position controls to ease guide star targeting. The night vision preserving red LED illumination is controlled by a variable brightness dial and on/off switch, powered by small watch type internal batteries (included). Includes a rubber eyeguard for comfort and blocking distracting stray light.