Zeiss Loxia Sonnar 2.4/85 T* vs Samyang 135mm f/2 ED UMC (Canon EF Mount)
Zeiss Loxia Sonnar 2.4/85 T* vs Samyang 135mm f/2 ED UMC (Canon EF Mount)
When comparing Samyang 135mm f/2 ED UMC (Canon EF Mount) and Zeiss Loxia Sonnar 2.4/85 T*, which one is better?
1. Lens Mount Comparison
The lenses each feature different lens mounts — the Zeiss Loxia Sonnar 2.4/85 T* features a Sony E while the Samyang 135mm f/2 ED UMC - (Canon EF Mount) features a Canon EF — and because of this the preference varies. If you have a compatible camera, then of course that lens will be a better choice for you.
Winner: Tied — It depends on your gear
Regarding lens mount: Popular lens mounts are Canon RF and EF, Micro Four Thirds and Nikon Z. Different lens mounts lets you connect different lenses to camera bodies, but some might not be compatible. This can be helped by using an adapter, like a Canon EF to RF adapter.
2. Largest Aperture Comparison
The Samyang 135mm f/2 ED UMC - (Canon EF Mount) has the largest aperture of the two lenses at 2 compared to the 2.4 aperture of Zeiss Loxia Sonnar 2.4/85 T*. This means that you get more light to your sensor using Samyang 135mm f/2 ED UMC - (Canon EF Mount) wide open, and therefore it might be a better lens in dark situations.
Winner: Samyang 135mm f/2 ED UMC (Canon EF Mount)
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.
3. Lens Type Comparison
Both lenses are Prime lenses, which means that you can choose both Zeiss Loxia Sonnar 2.4/85 T* or Samyang 135mm f/2 ED UMC - (Canon EF Mount) if you're looking for that type of lens.
Winner: Tied
Regarding type: There are two types of lenses; zoom lenses and prime lenses. Prime lenses have a fixed focal length and cannot be zoomed, while zoom lenses have a focal length range and can be zoomed in to get closer to the subject. Prime lenses are usually lighter, cheaper and let in more light. Zoom lenses are more versatile but are more expensive since they require a more advanced lens design.
Specifications
Full specifications table of Zeiss Loxia Sonnar 2.4/85 T* and Samyang 135mm f/2 ED UMC (Canon EF Mount):
| Zeiss Loxia Sonnar 2.4/85 T* | Samyang 135mm f/2 ED UMC - (Canon EF Mount) | |
 |  | |
| Brand | Zeiss | Samyang |
| Lens Mount | Sony E | Canon EF |
| Focal Length | 85 mm | 85 mm |
| Largest Aperture | 2.4 | 2 |
| Type | Prime | Prime |
| Image Stabilization | Missing | No |
| Autofocus | Missing | Hayır |
| Macro | Missing | No |