Multi-Function: Designed for Reflector telescope; fit for standard 1.25 inch diameter; this sturdy laser unit allows to swiftly and precisely collimate Newtonian telescope; accurate collimation in a few minutes provide more clearer image
High-quality metal construction and anodizing aluminium process; durable for long time use; require one CR2032 lithium battery "Not Included"
Well-Engineered: The laser comes fully adjusted however further adjust if required; it has three openings for adjustment; arranged at 120°; which are initially sealed; small screw cap at the rear of the laser must be first unscrewed to allow this
Premium apochromatic Barlow lens with four lens design
Simple to increase your eyepiece's magnification; no chromatic aberration