Summilux-M 50 mm f/1.4 vs C Sonnar T* 50 mm f/1.5 ZM
Leica
Summilux-M 50 mm f/1.4
Carl Zeiss
C Sonnar T* 50 mm f/1.5 ZM
Here we are comparing the Leica Summilux-M 50 mm f/1.4 and the Carl Zeiss C Sonnar T* 50 mm f/1.5 ZM. The Leica Summilux-M 50 mm f/1.4 is a 50mm standard prime lens with a maximum aperture of f/1.4, released in 2025. The Carl Zeiss C Sonnar T* 50 mm f/1.5 ZM is a 50mm standard prime lens with a maximum aperture of f/1.5, released in 2004.
There is a 21 years difference between the Carl Zeiss C Sonnar T* 50 mm f/1.5 ZM and the Leica Summilux-M 50 mm f/1.4 — the newer design may benefit from more recent optical engineering and coatings.
Below you will find a detailed side-by-side comparison of their specifications, features, and key differences.
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| Compare | ||
|---|---|---|
| Mount | ||
| Sensor Size | Full Frame | Full Frame |
| Best For | Portrait Street | Portrait Street |
Price & Availability | ||
| Shop | ||
Optical Specifications | ||
| Focal Length | 50 mm | 50 mm |
| Aperture | f/1.4 | f/1.5 |
| Aperture Blades | 12 | 10 |
Features | ||
| Autofocus | No | No |
| Image Stabilization | No | No |
| Weather Sealed | No | No |
Close-up Performance | ||
| Min. Focus Distance | 0.7 m | 0.9 m |
| Max. Magnification | 0.08x | - |
Physical Specifications | ||
| Weight | 417 g | 250 g |
| Length | 58 mm | 45 mm |
| Diameter | 45 mm | 56 mm |
| Filter Thread | 46 mm | 46 mm |
Price & Availability | ||
| Release Year | 2025 | 2004 |
| Shop | ||
Shopping links may contain affiliate codes that support this site at no extra cost to you.
Comparing Leica Summilux-M 50 mm f/1.4 (50 mm, f/1.4) and Carl Zeiss C Sonnar T* 50 mm f/1.5 ZM (50 mm, f/1.5).
Carl Zeiss C Sonnar T* 50 mm f/1.5 ZM is the lightest at 250 g, Leica Summilux-M 50 mm f/1.4 weighs 417 g.
Leica Summilux-M 50 mm f/1.4 offers the fastest maximum aperture at f/1.4, allowing for better low-light performance and shallower depth of field.
Leica Summilux-M 50 mm f/1.4 can focus closest at 0.7 m minimum focus distance.
Use the detailed comparison table below to see all specifications side-by-side and find the perfect lens for your photography needs.
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