B+W 46mm Circular Polarizer MRC Filter

The B+W 46mm Circular Polarizer MRC Filter is a premium optical filter built to improve image quality at capture by cutting glare, reducing reflections, and increasing overall color intensity. It is especially useful for landscape, travel, outdoor, and nature photography, where unwanted reflections from water, glass, painted surfaces, and atmospheric haze can flatten a scene. By using a circular polarizing design, this filter remains compatible with modern autofocus and metering systems commonly found in digital cameras and lenses.

Compatible With

• Lenses with a 46mm front filter thread

Why Use a Circular Polarizer

A circular polarizer is one of the most practical creative filters a photographer can own. Unlike a basic protective filter, it produces a visible effect that cannot be fully replicated in post-processing. Rotating the filter lets you control how strongly reflections are reduced and how much saturation and contrast are enhanced. This can make blue skies appear deeper, clouds more defined, and foliage more vibrant, while also helping reveal detail beneath the surface of water or behind glass in certain situations.

MRC Multi-Resistant Coating

B+W's MRC coating is designed to improve optical performance while making the filter easier to maintain. The coating helps minimize reflections at the filter surface, contributing to better contrast and reduced flare in challenging light. It also provides resistance to water, dust, and smudges, which is especially valuable for photographers working outdoors in changing weather or frequently cleaning their gear in the field.

Image Quality Benefits

Because this filter is made for photographers who want clean, dependable results, it is intended to preserve image sharpness while giving greater control over scene contrast and reflected light. It is particularly effective when the sun is positioned at roughly 90 degrees to the shooting direction, where polarization effects are often strongest. The result can be more dramatic skies, better separation between clouds and blue tones, and reduced atmospheric haze over distant landscapes.

Ideal Shooting Applications

This 46mm circular polarizer is well suited to compact lenses and smaller-diameter optics used for travel, street, nature, and general-purpose photography. It can be used to reduce glare on lakes, rivers, windows, and leaves after rain, while also helping photographers produce cleaner, more saturated images straight out of camera. It is equally useful for still photography and many forms of video work where controlling reflections optically is important during capture.

Build and Handling

The filter features a rotating front ring that allows smooth adjustment of the polarization effect. This hands-on control makes it easy to fine-tune the result depending on your angle to the light and the amount of reflection present in the scene. B+W filters are known for precise construction and dependable fitment, helping ensure secure attachment to properly matched 46mm filter threads.

Tips for Best Results

For the strongest polarization effect, use the filter in daylight when shooting at an angle away from the sun rather than directly toward it. Rotate the filter while looking through the viewfinder or live view display to see changes in reflections and sky tone. Keep in mind that polarizers reduce the amount of light reaching the sensor, so you may need to compensate with a slower shutter speed, wider aperture, or higher ISO depending on conditions. They can also create uneven sky darkening with very wide-angle lenses, so careful adjustment is recommended.

How It Compares to Other Filters

Compared with a UV or clear protective filter, a circular polarizer provides an active visual effect rather than simple lens protection. Compared with an ND filter, which mainly reduces light for exposure control, a polarizer changes the appearance of reflections and color saturation. For many photographers, a circular polarizer is among the most useful specialty filters because it improves scenes in a natural-looking way directly at the time of capture.

Recommended Accessories

To get the most from this filter, consider pairing it with a lens cleaning cloth, air blower, protective filter pouch, and a lens cap compatible with your lens diameter. A sturdy tripod can also be helpful when shooting in lower light, since polarizing filters typically reduce exposure by a noticeable amount. Outdoor photographers may also benefit from a weather-resistant camera bag to keep filters organized and protected between locations.

About B+W Filters

B+W has long been recognized for producing high-quality photographic filters favored by enthusiasts and professionals alike. The brand is especially respected for strong optical standards, durable construction, and advanced coatings that support both image quality and long-term usability. The MRC line remains a popular choice for photographers who want reliable performance in a wide range of shooting conditions.