K&F Concept Magnetic Variable ND & CPL & Black Diffusion 4-Pack

In this review the K&F Concept 4-filter kit for the DJI Osmo Pocket 3 is examined for run-and-gun creators and travel filmmakers who need quick exposure control and a softer portrait look. The set combines a CPL, a Black Diffusion 1/4, a variable ND2-32 (1-5 stop) and a variable ND32-512 (5-9 stop) in a magnetic mounting system, making it the single most convenient accessory to alter reflections, soften skin highlights, and dial in motion blur without changing lenses. For users who value speed and image quality, this kit delivers practical results.

Key Features

• Magnetic Installation: The magnetic system makes mounting and swapping filters on the Osmo Pocket 3 lens very fast and reliable for quick shots.
• CPL for Reflections: The circular polarizer removes non-metallic reflections on water and glass and boosts color saturation for richer skies and foliage.
• Black Diffusion 1/4: This filter softens skin texture and highlights to create a dreamy, filmic look that reduces visible wrinkles and pores.
• Variable ND Range: The ND2-32 provides 1-5 stops and the ND32-512 provides 5-9 stops of light reduction so exposure and motion blur are controllable across bright to very bright conditions.
• High-quality glass and coatings: Made from imported AGC optical glass with multilayer coatings that are hydrophobic, dust and grease repellent, and easier to clean.

Who It's For

The kit is ideal for vloggers, travel shooters, and content creators using the Osmo Pocket 3 who want a compact set of tools to control reflections, soften portrait highlights, and achieve motion blur without carrying a larger rig. Its magnetic mounting and the included variable NDs mean fewer filter swaps during a shoot, saving time when light changes rapidly.

It is less suitable for photographers who require highly specialized cinema diffusion grades or for those who prefer glass-only neutral density stacks with fixed, repeatable stops for heavy color-critical production work. Also, anyone using cameras other than the Pocket 3 should check compatibility first.

Pros & Cons

Pros

• Fast magnetic attachment streamlines field use and filter changes.
• Covers most shooting scenarios with two variable NDs and a CPL for color and contrast control.
• Black Diffusion 1/4 adds a flattering, filmic mist effect for portraits and highlights.
• Durable AGC optical glass with multilayer coatings resists dust, grease, and scratches.

Cons

• Variable ND dials can introduce slight color shifts or cross-polarization in extreme settings, a common limitation of compact variable NDs.

Specifications

Compatible Model	DJI Osmo Pocket 3
Filter Kit	CPL, Black Diffusion 1/4, ND2-32, ND32-512
ND Ranges	ND2-32 (1-5 stop), ND32-512 (5-9 stop)
Glass Type	Imported AGC optical glass
Coating	Multilayer, hydrophobic, dust and grease repellent
Mount	Magnetic installation for quick attachment

Our Verdict

The K&F Concept 4-pack is a practical, value-minded accessory set for Osmo Pocket 3 users who need rapid control over reflections, exposure, and portrait highlights. Between the magnetic mount, robust coatings, and the combination of CPL, diffusion, and wide-range variable NDs, it covers most everyday shooting needs and is especially useful for solo creators and travel shooters seeking filmic looks without extra gear.

Frequently Asked Questions

Will these filters fit the Osmo Pocket 3 directly?
Yes. The kit is specially designed for the DJI Osmo Pocket 3 and uses a magnetic system for direct mounting.

Can I achieve motion blur on sunny days with this set?
Yes. The ND2-32 and ND32-512 variable filters provide 1-9 stops of light reduction between them, allowing shutter speed control from partly cloudy to bright sun.

Does the black diffusion significantly soften images?
The Black Diffusion 1/4 produces a subtle mist film effect that softens skin highlights and lowers contrast for a dreamy, film-like portrait result.