Zeiss Ultra Prime 20mm T1.9 vs Panasonic Lumix G 20mm F1.7 II ASPH
Zeiss Ultra Prime 20mm T1.9 vs Panasonic Lumix G 20mm F1.7 II ASPH
When comparing Panasonic Lumix G 20mm F1.7 II ASPH and Zeiss Ultra Prime 20mm T1.9, which one is better?
1. Largest Aperture Comparison
The Panasonic Lumix G 20mm F1.7 II ASPH has the largest aperture of the two lenses at 1.7 compared to the 1.9 aperture of Zeiss Ultra Prime 20mm T1.9. This means that you get more light to your sensor using Panasonic Lumix G 20mm F1.7 II ASPH wide open, and therefore it might be a better lens in dark situations.
Winner: Panasonic Lumix G 20mm F1.7 II ASPH
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 Zeiss Ultra Prime 20mm T1.9 and Panasonic Lumix G 20mm F1.7 II ASPH:
| Zeiss Ultra Prime 20mm T1.9 | Panasonic Lumix G 20mm F1.7 II ASPH | |
 |  | |
| Brand | Zeiss | Panasonic |
| Weight | Missing | 87 g |
| Lens Mount | Missing | Micro Four Thirds |
| Focal Length | 20 mm | 20 mm |
| Largest Aperture | 1.9 | 1.7 |
| Anamorphic | Missing | No |
| Type | Missing | Prime |
| Image Stabilization | Missing | No |
| Autofocus | Missing | Evet |