Contax 28-85mm
A manual focus zoom lens with Vario-Sonnar optics and f/3.3–4 aperture, built for the Contax/Yashica C/Y mount system.
Overview
The Contax 28-85mm is a manual focus zoom lens developed under the Carl Zeiss Vario-Sonnar line for the Contax/Yashica C/Y (MM) mount. It was designed to cover a full-frame image circle and features T* anti-reflective coating. Known for its strong optical performance, it delivers excellent microcontrast and a characteristic "3D pop" in images, with users praising its bokeh and rendering. The lens has been described as substantial in size and build, and remains a sought-after piece among collectors of classic Contax glass.
Specifications
| Focal length | 28-85mm |
| Maximum aperture | f/3.3–4 |
| Filter thread | 82mm |
| Weight | 880g |
| Focus type | Manual focus |
| Image stabilization | None |
| Lens mount | Contax/Yashica C/Y (MM) |
| Model number | 218742 |
| Close focus | 0.90 m |
Design
The lens uses the Carl Zeiss Vario-Sonnar optical formula and features T* multi-coating to reduce flare and improve contrast. It is constructed for the Contax/Yashica MM mount system and includes a built-in lens hood and genuine Contax filter. The design emphasizes optical quality over compactness, resulting in a large, heavy lens with smooth manual focus operation.
Context
The Contax 28-85mm f/3.3–4 was part of a generation of high-end manual focus zooms that accompanied the Contax RTS series cameras. It is often mentioned alongside other C/Y mount lenses like the 28mm f/2.8, 50mm f/1.4, and 85mm f/2.8 as part of a premium lens set. Though specific production years are unconfirmed, it is associated with the 1970s era of Contax/Zeiss lens development and is regarded as one of the finest optical systems of its time.
Market
The lens sold for $450.00 in a recent private transaction (Fred Miranda forum), indicating strong collector interest. Earlier UK listings from 2010–2013 asked £399 for mint examples. Due to its build quality and optical reputation, it remains a desirable item, though long repair wait times (3+ months) have been noted for similar Contax lenses requiring service.
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