Yashinon DX Auto 50mm F1.7 - M42 mount

A fast, classic standard prime from Yashica’s respected Yashinon lineup, the Yashinon-DX Auto 50mm f/1.7 is valued for its solid construction, pleasing contrast, and smooth vintage rendering. Compact and versatile, it works beautifully for portraits, street photography, and everyday shooting.

Key Features

• 50mm focal length with a bright f/1.7 maximum aperture

• M42 screw mount — easily adaptable to most modern mirrorless systems

• Yashinon DX coatings for good contrast and colour reproduction

• Smooth manual focus with precise, well-damped action

• Classic character with pleasing background separation

• Solid all-metal vintage build

Condition

• Optics generally clean

• Some light marks on the rear element, shown in images

  • Cosmetic / age-related

  • No noticeable impact on image quality

• No fungus or haze

• Focus and aperture mechanisms operate smoothly

• Good overall cosmetic condition for its age

A dependable vintage fast prime offering classic Yashica character and strong real-world usability—ideal for photographers building an M42 kit or adapting timeless glass to modern cameras.