K&F Concept 4 Pack ND/PL Filter Kit for DJI Osmo Action 3/4/5 Pro

In this review the K&F Concept 4 Pack Push-in Fit ND/PL Filter Kit is judged as a practical, budget-friendly accessory for users of the DJI Osmo Action 3/4/5 Pro who need better exposure control in bright conditions. The biggest reason to buy is the combined ND and polarizer design that reduces up to 6 stops of light while cutting reflections, which makes it easier to capture smoother motion blur and richer skies during daytime sports and outdoor shoots.

Key Features

• Compatibility: Designed specifically for the DJI Osmo Action 3/4/5 Pro so it fits without removing the original protective filter and keeps the camera ready to use.
• Hybrid ND+PL design: Each filter combines neutral density and polarizing functions, offering ND8/PL, ND16/PL, ND32/PL and ND64/PL options to control exposure and reduce reflections.
• Stop range: The four filters provide 3, 4, 5 and 6 stops of light reduction so shooters can select precise exposure control for a wide range of daylight scenarios.
• Optical quality: Made from high-definition AGC optical glass with double-sided multi-layer nano-coating to preserve clarity while resisting water and scratches.
• Push-in fit: The push-in mounting system lets the filters be attached quickly and securely without screw mounts, maintaining the camera's movement stability.
• Lightweight design: Filters are weight-tested to avoid compromising action camera performance during dynamic shooting.

Who It's For

This kit is ideal for action camera users who shoot bright outdoor scenes - surf, snow, cycling or daytime sports - and want smoother motion blur and fewer reflections without carrying bulky gear. It is also a good choice for hobbyists and content creators looking for a simple way to increase contrast in skies and reduce glare from water or glass while keeping setups compact.

Serious professional filmmakers who require variable-tint precision or who prefer screw-on modular systems for fast in-field adjustments may prefer dedicated single-function ND or premium variable ND filters. Also, if absolute maximum optical purity under extreme critical conditions is required, higher-end glass from specialty manufacturers could be a better fit.

Pros & Cons

Pros

• Combines ND and polarizer in one to reduce reflections and control exposure with fewer accessories.
• Four stop levels (ND8/16/32/64) let users tailor motion blur and shutter speed in bright light.
• Push-in fit keeps the camera ready and maintains stability during action shooting.
• Durable AGC optical glass with multi-layer nano-coating improves resistance to water and scratches.

Cons

• Hybrid filters limit independent control of polarization angle compared with a dedicated rotating CPL in some scenarios.
• Image quality and functionality had mixed mentions from customers, so extreme critical shooters should test compatibility with their workflow.

Specifications

Brand	K&F CONCEPT
Compatibility	DJI Osmo Action 3/4/5 Pro
Filter types	ND8/PL, ND16/PL, ND32/PL, ND64/PL
Stops of light	3, 4, 5, 6 stops
Glass	AGC optical glass with double-sided nano-coating
Mount style	Push-in fit (no screw mount)
Key protections	Water repellent and scratch-resistant coating

Our Verdict

The K&F Concept 4 Pack ND/PL kit is a sensible value pick for Osmo Action 3/4/5 Pro users who need reliable daylight exposure control and reduced reflections without bulky rigs. Its hybrid ND+PL approach, secure push-in fit and durable glass make it a practical upgrade for outdoor shooters seeking better motion blur and punchier skies while keeping costs and gear complexity low.

Frequently Asked Questions

Will these filters fit without removing the camera's protective cover?
Yes, the push-in fit is designed to mount directly without removing the original protective filter on the compatible DJI Osmo Action models.

Do the filters reduce reflections as well as light?
Yes, each hybrid ND/PL filter combines neutral density reduction with polarizing action to cut reflections from non-metallic surfaces like water and glass.

Does the kit affect camera stability during action shots?
No, the filters are lightweight and have passed weight testing to avoid compromising action camera performance and movement stability.