Contax Zeiss 50mm f/1.4 Planar T* vs f/1.7 Planar T*
Both are Contax/Yashica prime lenses for full frame. Here is what actually differs.
Pick the f/1.4 Planar T* if
- You need ½ stop more light for low light or background blur (f/1.4 vs f/1.7)
- You shoot close-ups: it focuses down to 0.45 m vs 0.6 m
Pick the f/1.7 Planar T* if
- You want the lighter lens to carry: 85 g lighter (190 g vs 275 g)
Spec differences
5 differences| f/1.4 Planar T* | f/1.7 Planar T* | |
|---|---|---|
| Max aperture |
f/1.4
½ stop faster
|
f/1.7
|
| Weight |
275 g
|
190 g
lighter
|
| Length |
41 mm
|
36.5 mm
shorter
|
| Diameter |
62.5 mm
|
61 mm
|
| Min focus distance |
0.45 m
closer
|
0.6 m
|
9 identical specs hidden: brand, mount, type, format, focal length, filter thread, optical design, autofocus motor, image stabilization. Show all
- Brand
- Contax both
- Mount
- Contax/Yashica both
- Type
- Prime both
- Format
- Full frame both
- Focal length
- 50mm both
- Filter thread
- 55 mm both
- Optical design
- 7 elements / 6 groups both
- Autofocus motor
- Manual focus both
- Image stabilization
- No both
More comparisons
Yashica ML 50mm f/1.7 vs Contax Zeiss 50mm f/1.4 Planar T*
35 g lighter vs ½ stop faster
Yashica ML 50mm f/1.7 vs Contax Zeiss 50mm f/1.7 Planar T*
focuses closer vs 50 g lighter
Yashica ML 50mm f/2 vs Contax Zeiss 50mm f/1.4 Planar T*
135 g lighter vs 1 stop faster
Yashica ML 50mm f/2 vs Contax Zeiss 50mm f/1.7 Planar T*
50 g lighter vs ½ stop faster