K&F Hybrid Camera Filter 2-in-1 CPL + Variable ND2–ND32 Fader 72mm

The K&F Hybrid Camera Filter 2-in-1 CPL + Variable ND2–ND32 Fader 72mm combines a circular polarizer and a variable neutral density filter in a single 72mm screw-in unit. The polarizer reduces surface reflections and improves color saturation, while the variable ND fader provides adjustable light reduction from approximately 1 to 5 stops, allowing longer exposures or wider apertures in bright conditions. This compact two-in-one optical accessory is designed for landscape, architecture and outdoor photography where control of glare and exposure flexibility are required.

Advantages

This hybrid filter integrates a CPL and a variable ND into one threaded element, eliminating the need to stack separate filters and reducing vignetting on wide-angle lenses. The circular polarizer component improves contrast and color fidelity by minimizing reflections from water, glass and foliage. The variable ND fader offers smooth, stepless attenuation across its range, enabling hands-on control of exposure without changing camera settings drastically. The 72mm size fits lenses with corresponding threads and keeps overall weight and bulk low for field use.

Suitable for

• Landscape photography to deepen skies and manage reflections on water
• Architecture and urban scenes to reduce glare on glass and polished surfaces
• Outdoor portraits when controlling background exposure and using wider apertures
• Long-exposure effects such as smoothing water or cloud movement in bright light

Key specifications

• Filter type: Combined circular polarizer (CPL) + variable neutral density (ND2–ND32)
• Thread size: 72 mm screw-in mount
• ND range: approximately 1 to 5 stops of light reduction (variable)
• Optical design: circular polarizing element plus adjustable neutral density fader
• Construction: slim profile to reduce vignetting on wide-angle lenses

How to use

Screw the filter onto the front thread of a 72mm lens until secure. Rotate the CPL front ring to adjust polarization effect and maximize reduction of reflections or increase sky saturation; observe changes through the camera viewfinder or live view while rotating. To reduce incident light, rotate the ND adjustment element to the required position; note the approximate 1–5 stop range and monitor exposure indicators or histogram to achieve the desired shutter speed or aperture. When using both functions, first set the ND level for target exposure, then fine-tune the CPL rotation for reflection control and color balance.

Usage recommendations

Avoid excessive overlap of the polarizer and ND rotations that can introduce uneven darkening or cross-polarization artifacts. For critical wide-angle work, check for vignetting and, if present, use a slim-mount filter or stop down slightly. Store the filter in a protective pouch when not in use to prevent scratches and fingerprints on the optical surfaces.