The Orion 2-Inch Variable Polarizing Filter acts like a dimmer switch for your telescope. When you reduce brightness and unwanted glare, you will not only see more detail in the object you are observing but you'll improve contrast to boot!
The Orion Variable Polarizer allows you to easily adjust the amount of light transmission from a mere 1-percent to 40-percent by simply turning the rotating filter cell. This cell, by the way, is made of anodized aluminum, and it threads onto the barrels of any standard 2-inch eyepiece. Whether you are viewing the full moon, Venus, or using the filter during daylight hours to reduce glare and increase contrast, you will enjoy this versatile filter! When you are not using your Orion Variable Polarizing Filter, store it safely away in the included plastic case.