52° Series 20mm Waterproof Eyepiece Accessory Type_Extension Tube For ages 3 and up

For ages 3 and up

or even indoors by a window—the 50mm Tabletop Telescope is a great way to ignite curiosity about the universe

helping you follow celestial targets effortlessly

Focal Length 9mm

the compact 50mm aperture refractor is perfect for observing the Moon’s cratered surface

52° Series 20mm Waterproof Eyepiece Accessory Type_Extension Tube For ages 3 and upOften considered the perfect mid range focal length for most amateur telescopes, the 20mm on the ED127 at f7. 5 produces a 1 degree true field of view. Perfect for the Messier Marathon, or running down the Herschel Catalog. The 20mm 52 Series is also a good selection for most binoviewers with its relatively small size and magnification range. Explore Scientific Waterproof Eyepieces Comfort, Quality, Value. The Explore Scientific 52 Series eyepieces