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Production
-
Country
Japan
Optical
6 elements in 4 groups (Planar)
Updated
Feb 15, 2026
Contax Zeiss Planar 50mm f/1.7
Contax/Yashica (C/Y)
Overview
The Contax Zeiss Planar 50mm f/1.7 represents an intriguing position in the Zeiss lineup — the 'affordable' option in a system known for expense. Designed by Carl Zeiss in Germany and manufactured in Japan by Yashica (later Kyocera), this lens brought Zeiss T* coating and optical design to photographers who couldn't stretch to the f/1.4. Some argue it's actually superior to the faster version at matched apertures due to simpler optical compromises.
Verdict: The sensible Zeiss choice. While lens collectors chase the f/1.4, working photographers know this f/1.7 delivers the Zeiss magic at a more reasonable price. It's arguably the best value in the entire Contax Zeiss system — real Zeiss quality without the 'Zeiss tax.'
Community Insights
What people love
- Real Zeiss quality at (relatively) accessible price
- T* coating — exceptional flare resistance
- The 'Zeiss look' — 3D pop, rich colors
- Sharp wide open — arguably sharper than f/1.4 at f/1.7
- Excellent build quality
- Smooth, precise manual focus
- Smaller and lighter than f/1.4
- Metal construction throughout
What people dislike
- f/1.7 vs f/1.4 — less light gathering
- 6-blade aperture (f/1.4 has more)
- Still expensive compared to Japanese alternatives
- C/Y mount requires adapters for modern cameras
- Zeiss prestige hunters want the f/1.4
- Heavy for its size
Pro Tips
- AEJ versions are just as good as German optically
- Compare to f/1.4 at same aperture before paying premium
- Great portrait lens at f/2
- Exceptional value in the Zeiss lineup
- Adapts beautifully to Sony A7 series
Sources (1)
Lens Heritage 2nd JSONsecondary
The Contax Zeiss Planar 50mm f/1.7 represents an intriguing position in the Zeiss lineup — the 'affordable' option in a system known for expense. Designed by Carl Zeiss in Germany and manufactured in Japan by Yashica (later Kyocera), this lens brought Zeiss T* coating and optical design to photographers who couldn't stretch to the f/1.4. Some argue it's actually superior to the faster version at matched apertures due to simpler optical compromises.