Shop › Haida NanoPro Magnetic Variable ND Filter for DJI Osmo Pocket 3 and 4 Image 1 of 1 Haida NanoPro Magnetic Variable ND Filter for DJI Osmo Pocket 3 and 4 $20.00 Light Reduction: 1 to 5 stops (equivalent to ND2 to ND32)Design: Magnetic quick-swap system that attaches and detaches in seconds without tools or threadingOptical Quality: German SCHOTT optical glass with double-sided NanoPro multi-coating to minimize color cast, reflections, and distortionBuild: Lightweight aerospace/aviation aluminum frame that is slim and gimbal-safeDurability: Waterproof and oil-resistant surface for easy cleaningAdjustment: Built-in rotating ring to dial in your desired light reduction smoothly on the fly Add To Cart Added! Light Reduction: 1 to 5 stops (equivalent to ND2 to ND32)Design: Magnetic quick-swap system that attaches and detaches in seconds without tools or threadingOptical Quality: German SCHOTT optical glass with double-sided NanoPro multi-coating to minimize color cast, reflections, and distortionBuild: Lightweight aerospace/aviation aluminum frame that is slim and gimbal-safeDurability: Waterproof and oil-resistant surface for easy cleaningAdjustment: Built-in rotating ring to dial in your desired light reduction smoothly on the fly