1.25 inch plossl eyepiece set 6 mm 12.5 mm 20 mm; giving the widest viewing field along with extra sharpness and long eye relief
4-element plossl design; has a approx 52 degree AFOV; perfect for broad-field lunar observations; medium-sized star clusters; and a wide range of cloudy nebulas and deep-sky targets
Fold-down rubber eyeguard Threaded for standard 1.25 inch astronomy filters; comes with sturdy plastic dust caps-protect the eyepiece from dust and moisture
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