Compatible Models: for sj11 ultra Material: Optical glass + metal Packaging method: opp Description 1. Precision Engineering & Dedicated Compatibility: Crafted from high-quality optical glass and robust metal, this wide-angle lens is meticulously engineered for seamless integration and optimal performance with your SJ11 Ultra action camera. It ensures a secure fit, providing a reliable enhancement to your device without compromising its integrity. 2. :Unleash Ultra-Wide Perspectives: Transform your visual storytelling with an impressive 185° diagonal angle of view. This lens allows your SJ11 Ultra to capture expansive landscapes, dynamic action sequences, and immersive scenes, adding a dramatic and unique dimension to your photography and videography. 3. Advanced Optical Specifications: Designed for superior image capture, this lens features an 8mm focal length and a 0.8x magnification ratio. Its sophisticated optical structure, composed of 2 in 2 groups, works to deliver sharp and clear visuals. Achieve focus on subjects from a closest focusing distance of 0.5-1m (1.64-3.28 ft), offering versatility for various shooting scenarios. 4. :Distinctive Visuals with Pronounced Distortion: Characterized by its unique optical properties, this lens delivers a distinctive ultra-wide perspective. With a notable -90% distortion, it creates a dramatic and immersive fish-eye effect, perfect for artistic and creative shots that emphasize space, curvature, and a powerful sense of presence. 5. Effortless Enhancement for Your SJ11 Ultra: Easily upgrade your SJ11 Ultra's capabilities to capture breathtaking, expanded scenes. This dedicated add-on lens is simple to install, instantly broadening your camera's field of view. Please note: This listing is for the wide-angle lens only and does not include the camera. Package list: 1 lens