Filter K&F Hybrid 3-in-1 77 mm Fader ND2-32 + CPL + Black Diffusion 1/4

The K&F Hybrid 3-in-1 77 mm Fader ND2-32 + CPL + Black Diffusion 1/4 is a multi-function photographic filter designed for lenses with a 77 mm thread. This hybrid accessory combines a variable neutral density fader (ND2–ND32), a circular polarizer (CPL) and a softening Black Diffusion 1/4 element in a single slim filter. It enables exposure control for long exposures, reduction of surface reflections, and subtle diffusion to soften highlights while maintaining overall color balance and contrast.

Advantages

The integrated design removes the need to stack separate ND, polarizer and diffusion filters, saving weight and minimizing vignetting on wide-angle lenses. The variable ND fader provides a continuous range of light reduction from approximately 1 to 5 stops, allowing flexible control of shutter speed and aperture for creative motion blur or shallower depth of field. The CPL reduces glare and enhances color saturation on non-metallic surfaces, while the Black Diffusion 1/4 gently reduces specular highlights for a more even skin tone or softer highlights in landscape scenes.

Suitable for

• Landscape photography with controlled exposure and reduced reflections
• Portraits where subtle diffusion improves skin rendering
• Long-exposure scenes such as rivers, waterfalls, and moving clouds
• Outdoor product or architecture shots where glare reduction and color saturation are required

Key specifications

• Filter thread size: 77 mm
• Variable ND range: ND2 to ND32 (approx. 1–5 stops)
• Type of polarizer: circular polarizer (CPL)
• Diffusion strength: Black Diffusion 1/4 (subtle softening)
• Construction: multi-element hybrid filter in a single mount
• Finish: low-profile metal frame to reduce vignetting

How to use

Screw the filter onto a lens with a 77 mm thread, ensuring it is seated securely. Rotate the outer ring to adjust the ND fader to the required light reduction for correct exposure or the desired motion blur. To use the polarizer function, rotate the CPL element while observing reflections through the viewfinder or live view until glare is minimized and color saturation meets your needs. The Black Diffusion 1/4 element is integrated and provides continuous softening; avoid overuse in scenes where maximum sharpness is required. Check exposure and white balance after applying the filter and compensate as needed using camera settings or exposure bracketing.

Usage recommendations

When using the variable ND and CPL together, set the CPL first to control reflections, then adjust the ND fader for exposure. For long exposures use a sturdy tripod and remote shutter or timer to avoid camera shake. Monitor histogram and live view preview for accurate exposure; consider shooting in RAW to preserve color and dynamic range when applying diffusion and polarization effects.