Optolong Variable Polarizer Filter 2 Inch 20226 Iit provides a brighter

Iit provides a brighter

Prism Glass Type  Bak-4

You can progressively dim the view when observing a bright object

70-Degree Super Wide Angle

Dual-Speed 11:1 Linear Power Focuser (CNC machined)

Optolong Variable Polarizer Filter 2 Inch 20226 Iit provides a brighterOptolong Variable Polarizer Filter 1. 25 A variable polarizing Moon filter consists of two single polarizing filters coupled together. One of these has threads to attach to the bottom of eyepieces or other threaded adapter barrels, and the second filter can freely rotate over 360 degrees, thus allowing you to control the brightness of the image over a wide range. You simply rotate the lower filter until the image brightness is pleasing and comfortable