With removable 2 inch adapter both fit for standard 1.25 inch diameter and 2 inch diameter; red laser collimation beam with 7 brightness levels; wavelength 635-655 nm; output power less than 5mw; can swiftly and precisely collimate Newtonian telescope
Built with metal material; CR2032 Lithium Cell battery Not include; accurate collimation in a few minutes provide a more clearer image; the telescope can be collimated by just one person
Laser unit has a front opening from which the laser beam can be emitted; a side window allow a disk oriented at 45° with a central hole to be viewed for optimal adjustment; then later be used to see whether the laser is reflected back on itself
For precise focusing: flip mirror makes easy to find exact focus point and also correct position for astrophotography; this small black box has a moveable flip mirror which shunts light path 90 degree upwards; alternatively lets it pass through unhindered
Always sharp: If tilt mirror to 45 degree position; object will appear in eyepiece and precisely focus it as usual; helical focuser on flip mirror lets to make eyepiece and camera exactly parfocal; this means elements will be in focus at the same time