Fast & Secure Installation: Easily twist the lens into the 17mm thread mount on your smartphone case/genius rig, providing a stable connection to your smartphone's 1x main camera. 1.7x Optical Magnification: Ideal for capturing portraits, wildlife, and distant landscapes with exceptional clarity and detail. Advanced Multi-Layer Coating: Engineered with multi-layer optical coating to reduce glare and enhance contrast, delivering sharp, vibrant images. Durable Construction: Built from high-quality aluminum alloy for reliable performance in outdoor environments. Freewell 1.7x Telephoto Lens for iPhone & Samsung – 17mm Threaded Premium Portrait & Wildlife Lens