Sky Mentor Light Pollution Filter - 2" - TA-301-3 2X Barlows Explore Scientific U-Mount with Tripod

Explore Scientific U-Mount with Tripod for Large Binoculars

The Starbeam can quickly be swapped in- or out- of the Quick Release Bracket for transportation or transfer to different scopes

an older child

Cassini''s Division in the rings of Saturn

superior StarBright XLT coatings

Sky Mentor Light Pollution Filter - 2" - TA-301-3 2X Barlows Explore Scientific U-Mount with TripodSky Mentor Light Pollution Filter 2" The Sky Mentor Light Pollution Filter is a 2" specialty filter that blocks the visual spectrum except for wavelengths between 480 nm and 510 nm. This type of blocking filter is also known as a Nebular or ALP (anti light pollution) or an LPR (Light Pollution Reduction) filter. This particular transmission characteristic allows passage of ionized oxygen and hydrogen lines, but blocks light pollution sky reflectance