Product Description: Premium Copper Lens Adapter Ring for EF Mount Cameras High Quality Material: Crafted from high-quality copper, this lens adapter is built to last. Its strong, durable, and wear-resistant properties ensure a long service life, providing a reliable connection between your camera and lens. Manual Control: Designed for photographers who appreciate precision, this EF mount lens adapter supports fully manual control and manual focus. It also allows for infinite focus, offering you the flexibility to capture images exactly as you envision them. Good Performance: Experience seamless operation with the lens mount adapter's support for AV/M mode. Equipped with a lens lock and release mechanism and stop screw, it ensures secure attachment and a stable shooting experience, allowing you to explore creative possibilities without limitations. Application: This versatile lens adapter is compatible with Pentacon PB lenses and is suitable for EOS EF mount SLR camera bodies. It is applicable to a wide range of Canon models, including the 5D, 6D, 7D, 70D, 650D, and 700D, making it an essential accessory for expanding your photographic capabilities. Easy to Install: Featuring a fine finish, this lens adapter is easy to install, remove, and operate. Its lightweight and compact design make it convenient to carry, ensuring you can effortlessly switch lenses and capture the perfect shot wherever you go. Elevate your photography with this premium lens adapter ring, designed to enhance your creative workflow by bridging compatibility between your camera and a variety of lenses. Whether you're a professional or an enthusiast, this adapter provides the quality and versatility needed to achieve stunning results.