Nebula Filter H-Alpha 2-inch 7nm Optical Design_Refractor This new generation of filters

This new generation of filters makes it possible to take amazing astrophotos directly from the city with all its artificial light sources

The Explore Scientific ReflexSight™ is an essential zero-power finder for use on amateur or professional telescopes that can be employed as the sole or primary sight of a telescope

multiple mounting accessories

32mm aperture brings in lots of light so you can see more

It is ideal for observing planetary detail and smaller deep sky objects while maintaining a sense of space and scale

Nebula Filter H-Alpha 2-inch 7nm Optical Design_Refractor This new generation of filtersIn 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,