ENHANCED COMPATIBILITY - Seamlessly adapt M42 mount lenses to Sony E-mount cameras, including NEX series, a7, a7R, a9, a3000, a5000, a6000, a6300, a6500, a7S, a7 II, a7S II, a7R II, a7R III, and more. PRECISION FOCUSING - Maintain accurate focus and aperture control when using adapted lenses, ensuring optimal image quality and sharpness for professional results in various shooting conditions. DURABLE BUILD - Crafted from 100% high-quality brass, this adapter provides a secure and stable connection between your lens and camera, ensuring long-lasting performance and reliability. EASY INSTALLATION - Quickly and easily attach your M42 lens to your Sony E-mount camera body with this adapter, allowing you to expand your lens options without complex modifications.