K&F 77mm 3-in-1 Hybrid Filter Kit — Fader ND2–32, CPL, Black Diffusion 1/4

The K&F 77mm 3-in-1 Hybrid Filter Kit — Fader ND2–32, CPL, Black Diffusion 1/4 is a compact filter set for lenses with a 77 mm front thread. This kit integrates an adjustable Fader ND filter (ND2 to ND32), a circular polarizer (CPL) and a Black Diffusion 1/4 filter in a single stackable system. It is designed to provide flexible exposure control, suppress reflections and glare, and soften highlights for portrait and landscape photography without changing lenses on location.

Advantages

The adjustable Fader ND lets you vary light reduction smoothly from one to five stops for motion blur, wider apertures in bright conditions, or extended exposures. The CPL reduces unwanted reflections on water and glass and increases color saturation while preserving a natural look. The Black Diffusion 1/4 filter gently reduces contrast and softens specular highlights to produce a subtle diffusion effect useful for portraits and cinematic footage. All three filters mount on the same 77 mm threaded lens front for quick attachment and combined use.

Suitable for

• Landscape long exposures and ND-controlled motion blur
• Reducing reflections on water, glass and wet surfaces
• Portraits where highlight softening and reduced contrast are desired
• On-location video where quick changes between ND, polarization and diffusion are needed
• General outdoor photography in bright light to control exposure without changing ISO or shutter speed extremes

Key specifications

• Filter thread size: 77 mm
• Fader ND range: ND2 to ND32 (approximately 1 to 5 stops)
• Filter type: Adjustable neutral density (rotating), circular polarizer (rotating), Black Diffusion 1/4 (fixed)
• Construction: Multi-layer coated optical glass elements with metal carrier rings
• Effect: Exposure reduction, polarization for glare control, 1/4 diffusion strength for highlight softening

How to use

Attach the filter kit to a lens with a 77 mm front thread and secure it by rotating the carrier ring until it sits flush. Rotate the Fader ND element to select the required density between ND2 and ND32 to control exposure and motion blur. Rotate the CPL element while viewing through the viewfinder or live view to minimize reflections and adjust saturation; set the CPL before final framing. Use the Black Diffusion 1/4 element when you need reduced micro-contrast and softened highlights for portraits or cinematic looks. Combine elements as needed, checking focus and exposure after each change.

Usage recommendations

When using strong ND settings, use a tripod and remote release or camera timer to avoid camera shake. Adjust the CPL while observing reflections, and re-check white balance when stacking filters because combined elements can affect color balance. Keep filter threads clean and store filters in protective cases to prevent scratches and dirt.