ProMaster Basis Circular Polarizer Filter

A circular polarizer works by blocking specific light waves that create glare and reflections from non-metallic surfaces like water, glass, or foliage. By cutting this glare, the filter reveals deeper colors and richer contrast, while also reducing atmospheric haze to make distant details look sharper.

This filter has a 72mm diameter and uses a standard screw-in mount. You should check the front of your lens barrel or the inside of your lens cap for a symbol that looks like a circle with a line through it (ø) followed by a number; if your lens says 72mm, this filter will fit.

Because polarization depends on the angle of the light hitting your lens, you need to rotate the filter to find the sweet spot. The twistable ring allows you to adjust the effect in real-time, letting you choose exactly how much reflection you want to remove or how intense you want the colors to appear.

Yes, it improves it. The multicoating helps the glass transmit more light while reducing internal reflections and ghosting, which ensures your images remain crisp and clear without the unwanted flare often caused by lower-quality, uncoated glass.

While you can, it is generally better to remove it when you don't need the polarization effect. Polarizers reduce the amount of light entering your lens by about 1 to 2 stops, which can make it harder to shoot in low-light conditions or force you to use a slower shutter speed.