For finding and guiding astrophotography application

12.5mm illuminated eyepiece.Battery operated red LED illuminates the crosshair reticle

Features a double-crosshair reticle that allows positioning of a star image either in the central square or on intersection of any two lines. Can be used with Barlow to increase magnification. Gives comfortable eye relief, built in helical focuser allows sharp focusing of crosshairs. Continuous brightness control . Use two SR-44 batteries