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 50 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
#21 Orange - The orange filter blocks blue and green wavelengths; it sharpens boundaries between orange and greenish areas; #12 Yellow - The yellow filter improves contrast on Moon craters; on Mars; channels and polar caps become more apparent
#25 Red - The red filter blocks blue and green light nearly in total; for instance; between bluish toned structures and the brighter details on Jupiter's and Saturne's clouded surface; however; this filter is mainly used to observe Martian polar caps