Nebula Filter S-II 2-inch 6.5nm Accessory Type_Coma Corrector Optically polished glass with 1/4

Optically polished glass with 1/4 wavefront guaranteed

Perfect for twilight hunting sessions or use at sea

Its 1219mm focal length allows for brighter images

Designed to support smart devices up to 10 inches

strap and cleaning cloth

Nebula Filter S-II 2-inch 6.5nm Accessory Type_Coma Corrector Optically polished glass with 1/4In 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,