Contax 18mm f/4 Lens
The Contax 18mm f/4 is a 18mm f/4 lens designed for Contax/Yashica mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.
Contax 18mm f/4 Lens
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Lens Overview — Contax 18mm f/4
Key Features — Contax 18mm f/4
18mm Full-Frame Prime: Fixed 18mm focal length covers a full-frame image circle, delivering a broad wide-angle field of view with no crop factor on compatible bodies.
Contax/Yashica Mount: Designed for the C/Y mount system, compatible with Contax and Yashica SLR bodies and adaptable to many modern mirrorless cameras with a third-party adapter.
f/4 Maximum Aperture: Moderate maximum aperture suitable for well-lit environments, and typical for wide-angle primes of this era designed to prioritize sharpness across the frame.
Manual Focus Only: Fully manual focus operation gives the photographer precise control over focus placement, well-suited to deliberate shooting disciplines like landscape and architecture.
86mm Filter Thread: Large-diameter filter thread accommodates filters sized for the wide optical elements required to cover a full-frame circle at 18mm.
Zeiss Optical Design: Engineered with Carl Zeiss optics, reflecting the high standard of contrast and resolution associated with the Contax lens lineup.
Lens Specifications — Contax 18mm f/4
| Spec | Detail |
|---|---|
| Use Cases | Landscape, Architecture, Travel |
| Lens Type | Prime |
| Format | Full Frame |
| Zoom/Prime | Prime |
| Focal Length | 18mm |
| Maximum Aperture | f/4 |
| Camera System | SLR |
| Lens Mount | Contax/Yashica |
| Autofocus | No |
| Focus Type | Manual |
| Image Stabilization | None |
| Filter Thread | 86mm |
Description — Contax 18mm f/4
The Contax 18mm f/4 is a prime wide-angle lens designed for full-frame SLR cameras using the Contax/Yashica mount. With a fixed 18mm focal length, it sits in wide-angle territory and delivers a broad field of view suited to landscapes, interiors, and architectural subjects. The lens operates at a maximum aperture of f/4 and is manual focus only, placing full control of focus in the photographer's hands.
Its 86mm filter thread is a large diameter that reflects the optical requirements of a full-frame wide-angle design, so plan accordingly when budgeting for filters. At 350g, the lens is reasonably sized for what it covers. There is no image stabilization, so steady technique or a tripod is recommended when light levels drop.
For photographers already invested in or exploring the Contax/Yashica mount ecosystem, this 18mm prime offers a dedicated wide-angle option with full-frame coverage.
Pros — Contax 18mm f/4
- ✓Fixed 18mm focal length delivers consistent wide-angle perspective on full-frame SLR systems
- ✓Full-frame lensFormat coverage ensures no cropping concerns on compatible Contax/Yashica mount bodies
- ✓Manual focus design offers deliberate, precise focus control suited to landscape and architectural work
Cons — Contax 18mm f/4
- ✗Manual focus only — no autofocus capability, which may slow shooting in fast-moving situations
- ✗f/4 maximum aperture is modest, limiting low-light performance compared to faster wide-angle primes
- ✗Contax/Yashica mount is a legacy system with limited native body compatibility today