For DJI Osmo Action 5 Pro, 4, and 3 Housing Diving Color Lens Filter 1. Made of high-quality PC material for durability. 2. Features a professional-grade lens with precision grinding for enhanced image clarity. 3. Provides UV protection and reduces haze while correcting chromatic aberration in landscape photography. 4. Offers high transparency and accurate color reproduction for vivid, high-quality images. Waterproof and scratch-resistant to protect the lens. 5. Optimizes color performance for various underwater conditions: - Purple filter: Designed for green-tinted water at depths of 5–25 meters, ideal for freshwater lakes, reservoirs, or saltwater with green algae. - Red filter: Best used at depths of 10–20 meters under direct sunlight (e.g., midday), to counteract red light absorption and restore natural color balance, reducing excessive blue or green tones. - Pink filter: Filters excess blue light, improves contrast, and restores natural warmth and color accuracy in blue water environments.