Sky Mentor Light Pollution Filter - 2" - TA-301-3 2X Barlows stars will appear out of

stars will appear out of focus at the edge when used with the flat chip sensor of a digital camera

Explore Scientific U-Mount with Tripod for Large Binoculars

Distance from Rubber Cup: 15 mm

superior StarBright XLT coatings

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

Sky Mentor Light Pollution Filter - 2" - TA-301-3 2X Barlows stars will appear out ofSky 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