K & F Concept 46mm Blue coat MC CPL camera filter

46mm Circular Polariser for Photography

This 46mm circular polarising filter fits lenses with a matching thread size and is built from Japanese optical glass with a multi-coated blue finish. The ultra-slim aluminium alloy frame is designed to prevent vignetting on wide-angle lenses while the CNC trapezoidal pattern aids grip during rotation. It suits photographers who want to deepen blue skies, cut glare from water or foliage and boost overall colour saturation in outdoor scenes. The oxidised, blasted surface helps block stray light from entering the lens.

Multi-Coating and Slim Frame Benefits

The multi-coating reduces surface reflections and flare, which helps maintain contrast when shooting toward bright light sources. Because the rim is kept exceptionally thin, the filter avoids the dark corners that thicker rings can create on wide-angle zooms. Rotating the front element lets you dial the polarisation effect precisely for each composition, whether you are darkening a sky or removing reflections from a lake. The hardened glass resists everyday handling marks better than uncoated alternatives.

Check Lens Thread and Hood Compatibility

Before ordering, verify that your lens has a 46mm front thread; the size is usually marked on the barrel or in the manufacturer’s specifications. Ensure any lens hood you use can still mount over the filter’s slim profile without causing vignetting at the widest focal length. If your lens rotates its front element during focusing, remember to re-adjust the polariser after focus is locked. No adapter rings or step-up rings are included in the package.