Nebula Filter H-Alpha 2-inch 7nm Optical Design_Refractor where magnification can vary depending

where magnification can vary depending on spacing

multiple mounting accessories

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

or the brightest Messier deep-sky objects

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

Nebula Filter H-Alpha 2-inch 7nm Optical Design_Refractor where magnification can vary dependingIn 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,