Circular Polarizing Filter b&w international B+W BASIC CPL MRC 49mm

B+W BASIC CPL MRC 49mm is a circular polarizing filter from b&w international designed for lenses with 49mm filter threads. The filter reduces unwanted reflections from non-metallic surfaces and increases color saturation and contrast, helping to render skies and foliage with improved depth. The polarizing element rotates within the circular frame to adjust the degree of polarization, while the MRC (Multi-Resistant Coating) improves light transmission and reduces flare and ghosting.

Advantages

The B+W BASIC CPL MRC 49mm provides controllable polarization to suppress glare and manage reflections on water, glass and foliage. Its circular design preserves autofocus and exposure metering when used on modern cameras. The MRC coating enhances durability and lowers surface reflections, supporting clearer images with better contrast and reduced stray light artifacts.

Suitable for

• Landscape photography to deepen sky color and improve cloud contrast
• Outdoor photography of foliage and natural scenes to boost color saturation
• Architectural and urban photography to reduce window and facade reflections
• Water and reflective-surface photography to control glare and reveal details beneath surfaces

Key specifications

• Filter type: Circular polarizer (CPL)
• Thread size: 49 mm
• Coating: Multi-Resistant Coating (MRC) to reduce reflections and flare
• Mount: Rotating polarizing element in slim circular frame
• Compatibility: Designed for lenses with 49 mm filter threads

How to use

Mount the filter onto a lens with a 49 mm front thread and rotate the outer ring while observing the scene through the viewfinder or live view until the desired reduction in reflections and polarization effect is achieved. For landscape scenes, adjust the filter to deepen blue skies or reduce haze; for reflective surfaces, rotate to minimize glare and reveal underlying details. When using wide-angle lenses, check for vignetting and use a slim frame if necessary. Keep the filter clean and handle by the rim to avoid smudges on the optical surface.

Usage recommendations

To achieve consistent results, set exposure and white balance after adjusting the polarizer, as the filter may alter light transmission. Use the CPL most effectively at a 90-degree angle to the sun for maximum sky darkening. Store the filter in a protective case when not in use and clean with a soft microfiber cloth and appropriate lens cleaning solution to maintain the MRC performance.