Freewell Mavic 4 Pro Split ND1000/ND512 Filter

A split ND (Neutral Density) filter has two different densities on a single piece of glass, typically with a gradient in the middle. This allows you to darken a portion of the frame, like a bright sky, while leaving the rest unaffected, achieving a more balanced exposure.

The ND1000 designation typically refers to approximately 10 stops of light reduction, and ND512 refers to approximately 9 stops. Together, they provide significant light control for bright conditions.

While it can be used, the extreme light reduction (9-10 stops) makes it primarily suitable for specific creative purposes like long exposures or balancing very high contrast scenes. For general use, lower stop ND filters might be more appropriate.

No, Freewell filters are designed with 'Gimbal Safe' technology, meaning they are lightweight and balanced to not interfere with the drone's gimbal stability or flight performance.

The ideal placement is usually along the horizon line in landscape shots. For scenes with a distinct bright area (like a sunlit building against a darker background), you might align the split to cover the brightest element.

Yes, it is very useful for video recording, especially when you need to achieve a cinematic motion blur effect (e.g., by setting a 1/50s shutter speed for 24fps footage) or balance extreme dynamic range in bright daylight.

Use a soft, lint-free microfiber cloth. For tougher smudges, use a specialized lens cleaning solution sparingly on the cloth, never directly on the filter. Avoid touching the glass.

While designed to be gimbal-safe, extreme wide angles or specific drone lens designs can sometimes cause minor vignetting. Ensure the filter is correctly seated and consider slightly zooming in if the issue persists.

Verify that the split line of the filter is optimally positioned relative to the horizon or primary light source. Adjust your drone's camera settings (shutter speed, aperture, ISO) accordingly, remembering the filter already reduces light by 9-10 stops.

Ensure you are using genuine Freewell filters. If a color cast persists, calibrate your drone's camera settings or adjust white balance in post-production. High-quality optical glass minimizes this issue.

Ensure you are aligning the filter correctly with the lens mount. Never force the filter; if it feels stuck, check for obstructions or misalignment. Consult your drone's manual for specific filter attachment guidelines.