Optolong L-Ultimate Dual Band 3nm 1.25 Inch Filter video • Visual back allows for

• Visual back allows for use with 1

and thus is quite effective in suppressing light pollution sources when shooting galaxies

Great introductory stereo microscope with 20x power

orange anodized 345mm long and predrilled

Mass: 517 g (Total)

Optolong L-Ultimate Dual Band 3nm 1.25 Inch Filter video • Visual back allows forOptolong L Ultimate Dual Band 3nm 1. 25 Inch Filter Optolong L Ultimate Dual Band 3nm 1. 25 Inch Filter 3nm is designed to drastically reduce the effect of light pollution. The 3nm bandwidth means it strongly isolates the nebulae's emissions into H Alpha (red) and OIII (green blue) from anything else. It blocks light pollution, maximizes the signal from nebulae, and darkens the sky background. It also blocks artificial light from mercury vapor lamps,