Intense Focus on Just 10°of Sky
This reflex-sight finder superimposes a small LED-powered red dot of light on whatever object or part of the sky you want to observe. Focused at infinity, it shows about 10° of sky as opposed to the 3° of the Astroscan itself.
Simply align with the telescope and sight through the finder. Three separate thumbscrews are included - two for adjusting the alignment and one for turning the LED light source on/off and adjusting its intensity. Powered by a lithium wafer-type CR 2032 battery, included.