Neutral Density Filter Set K&F for DJI Osmo Action 3/4/5 Pro — 2x adjustable ND2–32 and ND32–512

K&F Neutral Density Filter Set for DJI Osmo Action 3/4/5 Pro includes two lens filters designed to reduce the amount of light entering the camera. The set contains one adjustable variable ND filter with an ND2–32 range and one fixed high-strength ND32–512 filter. These filters allow more flexible exposure control for action filming, time-lapse sequences and outdoor cinematography when shooting in bright conditions with DJI Osmo Action 3, 4 or 5 Pro cameras.

Advantages

The variable ND2–32 provides stepless control over exposure reduction, enabling fine-tuning of shutter speed to achieve motion blur or correct exposure without changing aperture or ISO. The fixed ND32–512 offers a wide attenuation range for very bright environments or when creating long-exposure effects. Both filters are crafted to preserve image color balance and sharpness while minimizing reflections and vignetting when used with compatible Osmo Action Pro housings. The compact design is optimized for action camera form factors and mounting systems.

Suitable for

• Action sports and fast-paced outdoor filming
• Time-lapse photography and long-exposure sequences
• Bright daylight shooting, beaches and snow scenes
• Cinematic handheld or helmet-mounted footage with motion blur control

Key specifications

• Filter types: adjustable variable ND and fixed high-strength ND
• Variable ND range: ND2–32 (stepless adjustment)
• Fixed ND range: ND32–512
• Compatibility: designed for DJI Osmo Action 3, 4 and 5 Pro camera front optics
• Optical characteristics: neutral density attenuation with color-balanced coatings
• Physical design: low-profile, compact form factor suitable for action camera mounts

How to use

Attach the appropriate filter to the front of the DJI Osmo Action 3/4/5 Pro camera according to the camera housing or mount instructions. For general daylight shooting, begin with the variable ND set to a low value and increase the density until the desired shutter speed and exposure are reached. Use the fixed ND32–512 when very strong light reduction is required or when creating pronounced long-exposure effects; select the strength that matches scene brightness and the shutter speed target. Check framing and focus after mounting, and monitor for any vignetting at wide angles. Clean filter surfaces before use to avoid artifacts.

Usage recommendations

When shooting fast-moving subjects, set the variable ND to achieve a shutter speed appropriate for controlled motion blur (for example, 1/2–1/60s depending on speed and desired effect) while keeping ISO as low as possible. For time-lapse and long-exposure sequences, use the fixed ND32–512 to allow multi-second exposures in bright light. Store filters in a protective case when not in use and handle by the edges to keep optical surfaces clean.