Olympus America Inc. PRF-ZD72 72mm PRO Protection Filter

72mm PRO Protection Filter

The Olympus PRF-ZD72 is a 72mm protection filter built for photographers who want to shield valuable interchangeable lenses from scratches, dust and everyday hazards. Its ZERO Coating is applied to both sides of the glass, reducing flare and ghosting while preserving image clarity. The satin black alumite aluminium frame adds durability and cuts reflections for clean light transmission. This filter suits shooters who leave protection on the lens at all times.

Optical limits of a screw-on filter

A screw-on filter adds two air-glass surfaces to the optical path, so even with advanced coatings there is a practical limit to how much flare can be suppressed in strong backlight. The 72mm thread size restricts use to lenses with that exact diameter; step-up rings add vignetting risk on wide angles. The alumite frame reduces reflections but cannot eliminate them entirely when shooting directly into bright sources. Buyers who need absolute flare control in extreme conditions may still see artefacts.

Capacity and headroom

The 72mm diameter covers a broad range of professional and enthusiast lenses, providing a single filter size for many focal lengths. The hardened glass and ZERO Coating handle frequent cleaning and harsh environments without degrading optical performance. It runs out of utility on lenses with smaller or larger threads, and on ultra-wide designs where any added thickness increases vignetting. Photographers who require filter stacking or variable ND functionality need a different system.