50 mm f/1.8 Anamorphic 1.33x vs 50 mm f/1.4 AS UMC
Sirui
50 mm f/1.8 Anamorphic 1.33x
Samyang
50 mm f/1.4 AS UMC
Here we are comparing the Sirui 50 mm f/1.8 Anamorphic 1.33x and the Samyang 50 mm f/1.4 AS UMC. The Sirui 50 mm f/1.8 Anamorphic 1.33x is a 50mm telephoto prime lens with a maximum aperture of f/1.8, released in 2020. The Samyang 50 mm f/1.4 AS UMC is a 50mm standard prime lens with a maximum aperture of f/1.4, released in 2014.
There is a 6 years difference between the Samyang 50 mm f/1.4 AS UMC and the Sirui 50 mm f/1.8 Anamorphic 1.33x — 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 Street |
Price & Availability | ||
| Shop | ||
Optical Specifications | ||
| Focal Length | 50 mm | 50 mm |
| Aperture | f/1.8 | f/1.4-22 |
| Aperture Blades | 10 | 8 |
Features | ||
| Autofocus | Yes | Yes |
| Image Stabilization | No | No |
| Weather Sealed | No | No |
Close-up Performance | ||
| Min. Focus Distance | 0.85 m | 0.45 m |
| Max. Magnification | 0.065x | - |
Physical Specifications | ||
| Weight | 560 g | 535 g |
| Length | 106.6 mm | 81.6 mm |
| Diameter | 69.2 mm | 74.7 mm |
| Filter Thread | 67 mm | 77 mm |
Price & Availability | ||
| Release Year | 2020 | 2014 |
| Shop | ||
Shopping links may contain affiliate codes that support this site at no extra cost to you.
Comparing Sirui 50 mm f/1.8 Anamorphic 1.33x (50 mm, f/1.8) and Samyang 50 mm f/1.4 AS UMC (50 mm, f/1.4-22).
Samyang 50 mm f/1.4 AS UMC is the lightest at 535 g, Sirui 50 mm f/1.8 Anamorphic 1.33x weighs 560 g.
Samyang 50 mm f/1.4 AS UMC offers the fastest maximum aperture at f/1.4-22, allowing for better low-light performance and shallower depth of field.
Samyang 50 mm f/1.4 AS UMC can focus closest at 0.45 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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