Samyang AF 135/1.8 FE vs Samyang 135mm f/2 ED UMC (Canon EF Mount)
Samyang AF 135/1.8 FE vs Samyang 135mm f/2 ED UMC (Canon EF Mount)
When comparing Samyang 135mm f/2 ED UMC (Canon EF Mount) and Samyang AF 135/1.8 FE, which one is better?
1. Lens Mount Comparison
The lenses each feature different lens mounts — the Samyang AF 135/1.8 FE 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 AF 135/1.8 FE has the largest aperture of the two lenses at 1.8 compared to the 2 aperture of Samyang 135mm f/2 ED UMC - (Canon EF Mount). This means that you get more light to your sensor using Samyang AF 135/1.8 FE wide open, and therefore it might be a better lens in dark situations.
Winner: Samyang AF 135/1.8 FE
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. Autofocus Comparison
In regards to autofocus, the winner is Samyang AF 135/1.8 FE since the other lens in this comparison, the Samyang 135mm f/2 ED UMC - (Canon EF Mount) does not have autofocus at all — it is a manual focus lens.
Winner: Samyang AF 135/1.8 FE
Regarding autofocus: Lenses with autofocus help you focus when shooting pictures or video. If a lens only has manual focus it means that you have to focus manually by adjusting the focus wheel on the lens. Most cinema lenses do not use autofocus and are manual focus only.
4. Macro Comparison
Neither Samyang AF 135/1.8 FE or Samyang 135mm f/2 ED UMC - (Canon EF Mount) are macro lenses.
Winner: Tied — Neither have this feature
Regarding macro: Macro lenses can focus much closer to your subjects and might be suitable when photographing flowers, insects, wildlife and nature.
Specifications
Full specifications table of Samyang AF 135/1.8 FE and Samyang 135mm f/2 ED UMC (Canon EF Mount):
| Samyang AF 135/1.8 FE | Samyang 135mm f/2 ED UMC - (Canon EF Mount) | |
 |  | |
| Brand | Samyang | Samyang |
| Lens Mount | Sony E | Canon EF |
| Focal Length | 135 mm | 85 mm |
| Largest Aperture | 1.8 | 2 |
| Type | Missing | Prime |
| Image Stabilization | Missing | No |
| Autofocus | Evet | Hayır |
| Macro | No | No |
| Full Frame Coverage | Yes | Missing |
| Lens Hood Included | Yes | Missing |