This unique and innovative collimation device for Newtonian reflectors combines the Astro Systems LightPipe with the Astro Systems SightTube into one easier to use, lower-cost tool. The 2-in-1 Astro Systems Light pipe Collimator accurately aligns optics in Newtonian telescopes (Light Pipe) as well as accurately aligning the focuser with the secondary mirror (Sight Tube). Save time, save money. Precision-made anodized aluminum, acrylic insert, and stainless steel crosshair wires. The Astro Systems Light pipe Collimator includes a 14-page instruction booklet. Easy to follow, the complete guide covers mechanical set-up, optical collimation, and star testing. Includes all necessary formulae and background information to collimate your Newtonian telescope, including "fast" systems.