50 mm f/1.2 AS UMC CS vs Otus ML 50 mm f/1.4
Samyang
50 mm f/1.2 AS UMC CS
Carl Zeiss
Otus ML 50 mm f/1.4
Here we are comparing the Samyang 50 mm f/1.2 AS UMC CS and the Carl Zeiss Otus ML 50 mm f/1.4. The Samyang 50 mm f/1.2 AS UMC CS is a 50mm telephoto prime lens with a maximum aperture of f/1.2, released in 2015. The Carl Zeiss Otus ML 50 mm f/1.4 is a 50mm standard prime lens with a maximum aperture of f/1.4, released in 2025.
There is a 10 years difference between the Samyang 50 mm f/1.2 AS UMC CS and the Carl Zeiss Otus ML 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 | Lightest Fastest Aperture | |
|---|---|---|
| Mount | ||
| Sensor Size | MFT | Full Frame |
| Best For | Portrait Street | Portrait |
Price & Availability | ||
| Shop | ||
Optical Specifications | ||
| Focal Length | 50 mm | 50 mm |
| Aperture | f/1.2 | f/1.4 |
| Aperture Blades | 9 | 10 |
Features | ||
| Autofocus | Yes | Yes |
| Image Stabilization | No | No |
| Weather Sealed | No | No |
Close-up Performance | ||
| Min. Focus Distance | 0.5 m | 0.5 m |
| Max. Magnification | - | - |
Physical Specifications | ||
| Weight | 375 g | 677 g |
| Length | 73 mm | 77.4 mm |
| Diameter | 67.5 mm | 100 mm |
| Filter Thread | 62 mm | 67 mm |
Price & Availability | ||
| Release Year | 2015 | 2025 |
| Shop | ||
Shopping links may contain affiliate codes that support this site at no extra cost to you.
Comparing Samyang 50 mm f/1.2 AS UMC CS (50 mm, f/1.2) and Carl Zeiss Otus ML 50 mm f/1.4 (50 mm, f/1.4).
Samyang 50 mm f/1.2 AS UMC CS is the lightest at 375 g, Carl Zeiss Otus ML 50 mm f/1.4 weighs 677 g.
Samyang 50 mm f/1.2 AS UMC CS offers the fastest maximum aperture at f/1.2, allowing for better low-light performance and shallower depth of field.
Samyang 50 mm f/1.2 AS UMC CS can focus closest at 0.5 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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