Contax 50mm f/1.7 MM Lens
The Contax 50mm f/1.7 MM is a 50mm f/1.7 lens designed for Contax/Yashica mount cameras. Used copies start from $211.14 on GearFocus, with buyer protection on every purchase.
Contax 50mm f/1.7 MM Lens
Used Contax 50mm f/1.7 MM Listings on GearFocus
Lens Overview — Contax 50mm f/1.7 MM
Key Features — Contax 50mm f/1.7 MM
50mm f/1.7 Aperture: A wide maximum aperture delivers capable low-light performance and meaningful subject separation at a standard focal length.
Full Frame Coverage: Designed to cover a full frame image circle, suitable for both 35mm film SLRs and adapted full frame digital bodies.
Contax/Yashica Mount: Natively fits Contax and Yashica SLR bodies, and can be adapted to most modern mirrorless systems with a third-party adapter.
Carl Zeiss Optics: Manufactured with Carl Zeiss optical designs, the MM series is known for its color rendition and contrast characteristic of Zeiss glass.
MM Compatibility: The MM designation enables full aperture control with Contax bodies that support program and shutter-priority exposure modes.
Manual Focus Design: Fully manual focus operation encourages deliberate, precise shooting suited to adapted use on mirrorless cameras with focus peaking or magnification aids.
Lens Specifications — Contax 50mm f/1.7 MM
| Spec | Detail |
|---|---|
| Use Cases | Portrait, Street, Creative Effects |
| Lens Type | Prime |
| Format | Full Frame |
| Zoom/Prime | Prime |
| Focal Length | 50mm |
| Maximum Aperture | f/1.7 |
| Camera System | SLR |
| Lens Mount | Contax/Yashica |
| Autofocus | No |
| Focus Type | Manual |
| Image Stabilization | None |
| Filter Thread | 55mm |
Description — Contax 50mm f/1.7 MM
The Contax 50mm f/1.7 MM is a manual focus prime lens built around the Contax/Yashica mount, designed for full frame coverage across both film SLR and compatible adapted digital systems. Its f/1.7 maximum aperture gives photographers meaningful light-gathering capability at the 50mm standard focal length, suitable for a broad range of subjects and lighting conditions. Weighing only 210g, it is a lightweight companion that won't add significant bulk to any camera kit.
The 55mm filter thread accommodates a wide range of commonly available filter accessories. With no autofocus and no image stabilization, this lens rewards a deliberate, manual approach to shooting. It is categorized as a prime lens in the standard focal length range, and its SLR-oriented design makes it a natural fit for film bodies as well as adapted mirrorless use.
Pros — Contax 50mm f/1.7 MM
- ✓Wide maximum aperture of f/1.7 provides strong low-light performance for a standard prime
- ✓Full frame coverage suits both film SLR and adapted digital full frame bodies
- ✓Lightweight at just 210g, making it easy to carry for extended shoots
Cons — Contax 50mm f/1.7 MM
- ✗Manual focus only — no autofocus support, which may limit usability for fast-moving subjects
- ✗No image stabilization, requiring steady hands or faster shutter speeds in lower light
- ✗Contax/Yashica mount requires an adapter for use on most modern camera systems
Videos — Contax 50mm f/1.7 MM
50mm Vintage Manual Lens Sharpness Comparison - Six Lenses Tested — BarTech TV






