Excellent Optical System: Designed primarily for planetary observation and great for deep sky objects too; aluminum material is used to make it last longer; a cost-effective eyepiece; it is also an excellent choice for birthdays and Christmas gifts
Elaborate Detailed Design: Equipped with an rotated eyepiece barrel and a convertible rubber eyecup for preventing stray light entering from the side; The edges of the lenses are blackened and the internal structure is treated to eliminate stray light
Exceptionally long 16 mm to 33 mm eye relief range allows eyeglass wearers to enjoy the entire view while still wearing their corrective lenses without vignetting; the Zoom eyepiece lets you change magnification power without physically changing eyepieces
Simply screw the dovetail clamp onto your photo tripod or tripod head; and you can mount your telescope on the tripod
7 bores are available for M6 and 1/4 inch screws; four M6 bores at 38 mm distance; one M6 bores lengthwise; one 1/4 inch tripod thread in middle with two drilled no threaded to fit screws up to 6mm diameter; center-to-center screw hole spacing: 37-43 mm