Nebula Filter S-II 2-inch 6.5nm 1000-1200 this telescope is as versatile

this telescope is as versatile as it is powerful

This is a field flattener for refractor-type telescopes with a focal ratio of f/5 to f/7

nature walks

Explore the microscopic world with precision and ease using this advanced LCD microscope from National Geographic

Reveal celestial wonders like the desolate beauty of the lunar terrain

Nebula Filter S-II 2-inch 6.5nm 1000-1200 this telescope is as versatileIn addition to the turbulence in the air, the brightening of the night sky is the greatest obstacle to observing faint objects beyond the solar system. Street lights and other artificial lighting mean that the sky in human settlements is no longer properly black. As a result, the contrast and thus the perception of the deep sky objects also suffer. Depending on the type of celestial object, however, part of the interfering light can be filtered out,