Astromania Telescope Accessory Kit Telescope - Bundle with - 1.25" 7-21mm Zoom Eyepiece for Telescope

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A twist of the zoom eyepiece housing changes focal length from 21 mm to 7 mm providing a variety of viewing magnification powers; excellent contrast and sharpness making the zoom also of interest for planetary observing
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
Apparent field of view is 30 degree at 21 mm and 43 degree at 7 mm; rubber traction ring ensures a good grip; the 1.25 inch barrel is threaded for filters; actual magnification range will depend on the focal length of your telescope
Useful 1.25 inch accessories for every standard entry-level telescope; this set expands the range of magnifications and lets you discover more details
Get started in planetary observing - increase the contrast with Mars' polar caps or Jupiter's bands. Lunar filter - reduce the brightness of the Moon; 2X Barlow lens - double the magnification of all your eyepieces