Optolong L-eXtreme Dual Band 1.25 Nebula Filter 20366 it is fairly easy to

it is fairly easy to point your telescope along its line of sight and get that object in your eyepiece

nebulae and globular star clusters

and even comet hunting

Storage Relative Humidity: 20%—95%

Optolong L-eXtreme Dual Band 1.25 Nebula Filter 20366 it is fairly easy toOptolong L eXtreme Dual Band 1. 25 Nebula Filter Features 1. 25" low profile filter cell suitable for filter drawers, filter wheels with 1,25" filter thread The filter has a very narrow bandwidth of only 7 nm for O III and H Alpha and provides a very high contrast The areas of light pollution are completely blocked, so successful deep sky photography is also possible from close to the city The filter is suitable for mono and color cameras H Alpha