Fotodiox DLX Stretch Lens Mount Adapter Compatible with Contax/Yashica (CY) Lenses to Sony E-mount Cameras

DLX Stretch adapters feature built-in focusing helicoid, magnetic drop in filtration, and chrome plated brass mounts on lens and camera side for smooth mounting; The best of all Fotodiox adapters in one Compatible with Contax/Yashica (CY) lenses on Sony E-mount mirrorless cameras; Infinity focus or beyond allowed Built-in helicoid provides macro focus for any lens as well as correction for back focus; Provides ability to calibrate lens for proper use with infinity mark position Magnetic drop-in filters include: ND4, ND8 and ND16; Constructed from optical polycarbonate (CR39) for clarity and durability Limited 2-Year Manufacturer Warranty