Hoya 0741 72mm HMC 81B Screw-in Filter

The Hoya 72mm HMC 81B is a light-balancing screw-in filter designed to add a subtle warm tone to images captured in daylight or with electronic flash. The 81B grade sits in the middle of Hoya's 81-series warming range, making it strong enough to visibly reduce the cool blue cast that can appear on overcast days or in open shade, while still looking natural rather than heavily orange-tinted. For film photographers, it is a straightforward way to correct color without switching film stocks; for digital shooters, it provides a consistent, in-lens look that avoids the need for white-balance tweaking in post-production.

Hoya's proprietary HMC (Hoya Multi-Coating) is applied to both surfaces of the glass to suppress internal reflections, flare, and ghosting — an important consideration when stacking filters or shooting toward bright light sources. The multi-coating also makes the glass easier to clean and more resistant to smudges. Threaded at 72mm, the filter screws directly onto a broad selection of mid-range and professional zoom and prime lenses. Its all-glass construction preserves the sharpness and contrast of the underlying optic, making it a practical choice for photographers who want to warm their images at the capture stage with minimal optical compromise.