NEEWER 18mm Wide-Angle Lens for Smartphone Cameras

I bought this and opened it, but I've never used it. The box is torn. Thank you for your understanding.

Maximum Focal Length: 42mm
Minimum Focal Length: 28mm
[18mm Wide-Angle Lens] The 18mm wide-angle lens has a 0.75x magnification. Attach it to your smartphone's main camera to capture clear, sharp photos with a wide 100° field of view (FOV) and creative edge distortion. It's perfect for various scenes such as wildlife, natural landscapes, cityscapes, concerts, and group photos.
[Anti-Reflection Coating] The lens features multiple high-quality anti-reflection (AF) coatings, minimizing lens flare while ensuring accurate color reproduction.
[17mm Screw-on Lens Clip] The wide-angle lens can be attached to your smartphone's main camera using the included lens clip, secured with a 17mm screw. With a 28mm adjustable opening, it's compatible with iPhone 17 series, 16 Pro Max, 15, 14, 13 Pro Max, Android, and Galaxy S25 Ultra. It can also be used with NEEWER smartphone cages/cases and backplates with 17mm lens mount screws.
[Superior Optical Structure] The HD optical glass has a 6-element, 5-group optical configuration, enhancing light transmission while preventing chromatic aberration and distortion. This lens attachment is an essential smartphone camera accessory kit for content creators and a necessary shooting tool for influencers.
[Lightweight & Durable] This lightweight lens attachment features an aluminum alloy shell. Please Note: Before use, please clean the main camera and any adjacent cameras. If vignetting occurs, tighten the lens and set the camera zoom to 1.1x or higher.