Hoya Y1POLC095 95mm Circular Polarizing Filter

The Hoya Y1POLC095 is a 95mm circular polarizing filter designed for photographers and videographers working with large-diameter lenses. Circular polarizers are among the most useful optical filters because their effects — reducing reflections, cutting glare from non-metallic surfaces, deepening blue skies, and boosting overall color saturation — cannot be fully replicated in post-processing. This filter works by arranging and filtering directionally polarized light, absorbing reflected light while allowing the desired image-forming light to pass through to the sensor.

With approximately 93% average light transmission and a filter factor of 3 to 4x (1.6 to 2 stops of light reduction), the Hoya polarizer has a moderate impact on exposure that should be accounted for when setting shutter speed or ISO. The polarizing effect is strongest when shooting at a 90-degree angle to the sun, making it particularly effective for landscape and architectural photography where reflections off water, glass, or wet surfaces can be problematic. This is a non-coated filter, which keeps it more affordable than Hoya's HD or HD Nano lines but does mean it lacks the anti-reflective treatments that reduce flare in backlit conditions. For the 95mm filter size — which serves large professional telephoto zooms and cinema lenses — options from reputable manufacturers are limited, making this Hoya filter a practical choice for those who need polarization at this diameter.