Yashica ML 50mm f/1.9 - Contax/Yashica Mount

The Yashica ML 50mm f/1.9 is a standard prime lens using the Contax/Yashica (C/Y) bayonet mount. Developed as a more affordable alternative to the f/1.7 and f/1.4 versions, it features Multi-Layer (ML) coating to reduce flare and ghosting. Its simple six-element construction provides a natural perspective and reliable sharpness, often preferred by vintage lens enthusiasts for its compact size and character. When purchasing a used ML 50mm f/1.9, the primary concerns are internal haze and aperture health. SDS checks the diaphragm for oil on the blades, which can cause slow operation. We also inspect the mechanical focus helicoid for smooth movement, as older lubricants can stiffen over time, and verify the glass is free from cleaning marks or coating damage.