Nebula Filter S-II 1.25-inch 12nm 62-series-eyepieces 5" Hexagonal focuser with very

5" Hexagonal focuser with very rigid design and strong support

Battery not included

Comfortable handle with adjustable strap ensures steady grip

Includes bolts and screws for mounting the base to the optical tube assembly

25" UHC Range from 458nm to 508nm with peak at 488nm

Nebula Filter S-II 1.25-inch 12nm 62-series-eyepieces 5" Hexagonal focuser with veryIn 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,