Sky Mentor Light Pollution Filter 1.25" - TA301-2 type-solar-telescopes 2 mm Eye Relief: 15

2 mm Eye Relief: 15 mm Light Transmission: 88% Twilight Factor: 17

wider field

56 bright green

9 lb Tripod Weight (lb) 13

The control system also allows you the user to slew the telescope at 9 different driver speeds

Sky Mentor Light Pollution Filter 1.25" - TA301-2 type-solar-telescopes 2 mm Eye Relief: 15Sky Mentor Light Pollution Filter 1. 25" TA301 2 The Sky Mentor Light Pollution Filter is a 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, 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