Hoya 67mm Yellow Green Multi Coated Glass Filter (X0) #11 camera filter

What this filter does

The Hoya 67mm Yellow Green Multi Coated Glass Filter (X0) #11 is designed for black-and-white photographers who want natural skin tones under tungsten light or when shooting against green foliage. It darkens reds while absorbing green and green-blue tones for more realistic portrait rendering. The filter is lighter than a pure green filter, making it useful for outdoor scenic work where softer lighting and added detail are desired. Multi-coated glass reduces flare and protects the optical surface.

What the coating changes

Multi-coating on the glass cuts surface reflections that cause flare and ghosting, especially when shooting toward bright light sources or using flash. This preserves contrast and keeps highlight detail clean in high-contrast scenes. The coating also hardens the front surface, so the filter resists scratches and cleans more easily than uncoated glass. No additional accessories or software are included in the package.

Fitting and common issues

The filter threads onto any lens with a 67mm front thread; check the lens barrel or cap for the diameter mark before buying. Vignetting can appear on wide-angle lenses if the filter frame is thick or if a hood is stacked on top. Over-tightening makes removal difficult — tighten only until snug. Keep the filter in its case when not in use to avoid coating damage from grit or fingerprints.