CPL filter K&F Concept Nano-C HMC 72mm for DSLR and mirrorless lenses

The CPL filter K&F Concept Nano-C HMC 72mm is a circular polarizer designed to reduce reflections and glare from non-metallic surfaces, increase color saturation and enhance contrast for clearer skies and more vivid foliage. It mounts via a 72mm front thread and is compatible with DSLR and mirrorless lenses that accept 72mm screw-in filters. The filter is intended for outdoor, landscape and travel photography where controlling reflections and improving color rendering are important.

Advantages

This circular polarizing filter lowers unwanted reflections on water, glass and wet surfaces while also cutting atmospheric haze to improve scene clarity. By selectively filtering polarized light, it enhances blue tones in skies and deepens greens in vegetation, resulting in stronger color separation and perceived contrast without digital post-processing. The multi-coated surface helps reduce internal reflections and flare, preserving image sharpness and maintaining natural color balance.

Suitable for

• Landscape photography to enhance skies and foliage
• Outdoor and travel photography where reflections are common
• Architectural exteriors and scenes with glass or water
• Portraits shot outdoors to reduce glare and improve color

When it may not be suitable

The CPL filter is not effective on metallic reflections and may darken the scene at certain rotation angles, so it can be less suitable for low-light situations where additional exposure is needed. Wide-angle lenses may show uneven polarization across the frame when used at extreme angles to the sun, which can produce inconsistent sky tones.

Key specifications

• Filter type: Circular polarizer (CPL)
• Filter thread size: 72 mm (screw-in)
• Coating: multi-coated for reduced reflections and flare
• Compatible systems: DSLR and mirrorless lenses with 72 mm front thread
• Effect: reduces reflections, increases color saturation and contrast

How to use

Screw the CPL filter onto the lens front thread until snug, then rotate the outer ring while looking through the viewfinder or at the live view screen to set the desired level of polarization. Adjust until reflections are reduced and the sky or foliage appear naturally enhanced; avoid over-rotation that makes the scene unnaturally dark. Recheck exposure settings after adding the filter, as it can require small exposure compensation in some situations.

What to consider before purchase

• Confirm your lens front thread diameter is 72 mm before buying
• Consider whether your shooting often requires glare reduction or enhanced skies
• Check if you use wide-angle lenses frequently, as uneven polarization can occur
• Verify compatibility with any lens caps or accessories you use

Usage recommendations

For best results, use the CPL filter outdoors with the sun positioned at roughly 90 degrees to the camera axis. Rotate the filter while observing the scene to find the optimal balance between reflection reduction and overall exposure. When shooting landscapes, combine the polarizer with a tripod and manual exposure adjustments to maintain consistent image quality.