For photographers seeking to enhance their images, the 72mm Circular Polarizer Glass Filter is an indispensable tool. This high-quality filter is designed to intensify color saturation and contrast, transforming your outdoor photography with richer, more vivid hues. The Polarizer Glass Filter works by reducing the whitish glare often caused by reflected light, which can wash out the color in your images. By correcting this, the filter produces deep, dramatically blue skies and removes glare from non-metallic surfaces such as windows and water. This essential general-use outdoor color filter is not only beneficial for color photography but also enhances black and white images. When combined with a Red 25 filter (sold separately), it can create incredibly dramatic black and white landscapes. One of the key features of this 72mm Circular Polarizer Glass Filter is its rotatable design. This allows you to adjust the filter to achieve your desired effect, providing you with greater control over your image results. Designed for use with the Tiffen Polarizer, this filter can be paired with the enhancing filter for even more dramatic effects. It's also compatible with wide-angle lenses, making it a versatile addition to your photography kit. The Circular Polarizer has the same effect as a Polarizer and is used on cameras with beam-splitting metering systems, commonly found on auto-focus SLR's. For optimal results with a Circular Polarizer, point your index finger at the sun and rotate your thumb at a right angle around the axis of the index finger. This will indicate the band of deepest blue from horizon to horizon. Please note, some users have found that the filter may be a little difficult to remove due to the front of it rotating, and the lens cap may not stay affixed due to not enough threading. However, the ease of mounting and the stunning effects it produces make the 72mm Circular Polarizer Glass Filter a valuable asset for any photographer.