The Series 4000 MA 12mm Illuminated Reticle
Eyepiece (1.25"), with Cord. This special-purpose eyepiece for guiding
during long exposure astrophotography features illuminated crosshairs,
so that the lines are clearly visible against a dark sky. For use with
a Meade Off-Axis Guider. Comes with a 6' cord and connector for direct
plug-in to the control panels of Meade models such as the LX200-ACF
which have an illuminated reticle jack (see the telescopes instruction
manual for details on use and reticle brightness and other controls ).
Night vision preserving red LED illumination and rubber eyeguard for
comfort and blocking distracting stray light.