Arri Master Prime 40mm T1.3 vs Zeiss Ultra Prime 40mm T1.9
Arri Master Prime 40mm T1.3 vs Zeiss Ultra Prime 40mm T1.9
When comparing Zeiss Ultra Prime 40mm T1.9 and Arri Master Prime 40mm T1.3, which one is better?
1. Largest Aperture Comparison
The Arri Master Prime 40mm T1.3 has the largest aperture of the two lenses at 1.3 compared to the 1.9 aperture of Zeiss Ultra Prime 40mm T1.9. This means that you get more light to your sensor using Arri Master Prime 40mm T1.3 wide open, and therefore it might be a better lens in dark situations.
Winner: Arri Master Prime 40mm T1.3
Regarding largest aperture: A lower aperture number means that the widest aperture on the lens is larger. This means that more light will hit the sensor and also that the depth of field will be shallower, better separating your subject from the background.
Specifications
Full specifications table of Arri Master Prime 40mm T1.3 and Zeiss Ultra Prime 40mm T1.9:
| Arri Master Prime 40mm T1.3 | Zeiss Ultra Prime 40mm T1.9 | |
 |  | |
| Brand | Arri | Zeiss |
| Lens Mount | Arri PL Mount | Missing |
| Focal Length | 40 mm | 40 mm |
| Largest Aperture | 1.3 | 1.9 |
| Anamorphic | No | Missing |
| Type | Prime | Missing |
| Lens Front Diameter (Not Filter Thread) | 114 mm | Missing |
| Image Stabilization | No | Missing |
| Autofocus | Hayır | Missing |
| Macro | No | Missing |
| Full Frame Coverage | No | Missing |