The main use for the Optical Flat PV Filter is its protective function. It acts as a barrier against dust, moisture and accidental impacts, safeguarding the front element of your lens from potential damage. By serving as a protective layer, it helps prolong the lifespan of your valuable lenses, saving you costly repairs and allowing you a bit more freedom and mobility with the type of shots you can achieve without damaging your kit! Whether you’re shooting wide-angle landscapes or capturing intricate details in harsh environments, the Optical Flat PV Filter preserves the integrity of your lens’s optical performance while keeping the frontal part of the lens protected against any exterior elements.