Hoya B52CIRPLW 52mm Moose Peterson Warming Polarizer

The Hoya 52mm Moose Peterson Warming Circular Polarizer is a specialty filter that merges the light-controlling benefits of a circular polarizer with the color-enhancing qualities of a warming filter. Developed in partnership with renowned wildlife and nature photographer Moose Peterson, this filter is engineered for photographers who want to reduce reflections, deepen blue skies, and enhance color saturation while adding a pleasing warm tone — all without stacking multiple filters on the lens. The result is cleaner images with fewer potential issues from vignetting or inter-filter reflections.

With a 52mm thread size, it attaches directly to compatible lenses and functions like any rotating circular polarizer — turning the outer ring adjusts the degree of polarization. The warming component is built into the filter glass itself, adding a subtle golden tone that counteracts the slightly cool cast some standard polarizers produce. This makes it particularly effective for outdoor and landscape photography where warm, natural-looking light is desirable. As with any polarizer, expect approximately 1-2 stops of light loss, so it is best suited for daylight shooting conditions.