Orion 7228 EZ Finder II Telescope Reflex Sight Simple, affordable, and effective red dot sighting device makes aiming your telescope a cinch! A small red LED dot is projected onto a non-magnifying viewing window so you can aim the main telescope quickly and easily Brightness of the red dot is adjustable to suit your preference Thumbwheels allow positioning of the red dot horizontally and vertically for precise telescope alignment Includes bracket that fits the dovetail mounting base on many Orion telescopes