Yashica 50mm f/1.9 DSB Lens (C/Y Mount)
Vintage Manual Focus Standard Prime SOLD AS-IS / REPAIR
The Yashica 50mm f/1.9 DSB is a classic, lightweight standard prime lens featuring the popular Contax/Yashica (C/Y) bayonet mount. Celebrated for its natural “normal” perspective that closely mimics the human eye, this lens is historically a staple for everyday street photography, casual snapshots, and portraits. Its bright f/1.9 maximum aperture offers solid low-light capability and a smooth, shallow depth of field. This legacy prime is a favorite among vintage film enthusiasts and modern mirrorless shooters who adapt legacy glass to capture a warm, distinctly analog aesthetic. Please note: This vintage lens is being sold strictly AS-IS due to optical degradation and missing rear hardware.
Key Features & Engineering
Natural 50mm Standard Perspective: Provides a highly versatile and intuitive field of view on full-frame sensors and vintage film bodies, making it an excellent walk-around lens for a wide variety of subjects.
Bright f/1.9 Aperture Speed: The fast f/1.9 maximum aperture allows for efficient light gathering in dim environments and enables beautiful subject separation from the background.
Tactile C/Y Manual Focus Mount: Fully mechanical manual focus architecture features a ribbed grip focus ring for deliberate, precise manual adjustments. Natively couples with Contax and Yashica SLR bodies and adapts easily to modern digital camera systems via simple third-party adapters.
Yashica DSB Multi-Coating: Treated with Yashica’s proprietary DSB multi-coating process to optimize light transmission, improve color rendition, and control standard flare. Features a standard 52mm front filter thread.
Item Condition & AS-IS Notes
Optical Condition (Fungus, Dust & Scratches): SOLD AS-IS. Inspection reveals internal optical fungus blooming and noticeable dust accumulation settled between the inner lens groups. Additionally, there are light, superficial scratches visible on the exterior glass surfaces.
Performance Impact: Due to these combined optical imperfections, shooting with this lens will likely result in lower overall contrast, noticeable highlight blooming, and a soft, “dreamy” vintage character, especially when shooting into direct light. It is an ideal candidate for an optical teardown project, cleaning practice, or for creators seeking a budget-friendly lo-fi effect lens.
Mechanical Status: The mechanical manual focus ring turns properly, and the physical aperture ring clicks into place. The internal iris blades are dry and responsive.
Included Accessories: Comes equipped with a compatible front lens cap. The rear lens cap and lens hood are NOT included.
Technical Specifications
Lens Classification: Vintage Standard Prime (DSB Series)
Lens Mount Type: Contax/Yashica (C/Y) Mount
Focal Length: 50mm
Maximum Aperture: f/1.9
Minimum Aperture: f/16
Focusing Control: Fully Mechanical Manual Focus & Manual Aperture Ring
Filter Thread Size: 52 mm
Chassis Material: Metal and Composite Barrel Construction

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