Atlas Orion 21mm T2 2x vs Samyang 135mm f/2 ED UMC (Canon EF Mount)
Atlas Orion 21mm T2 2x vs Samyang 135mm f/2 ED UMC (Canon EF Mount)
When comparing Samyang 135mm f/2 ED UMC (Canon EF Mount) and Atlas Orion 21mm T2 2x, which one is better?
1. Lens Mount Comparison
The lenses each feature different lens mounts — the Atlas Orion 21mm T2 2x features a Arri PL Mount 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
Both lenses share the same aperture of 2 — this means that you may buy both Atlas Orion 21mm T2 2x and Samyang 135mm f/2 ED UMC - (Canon EF Mount) in this regard; they''re the same.
Winner: Tied
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 Atlas Orion 21mm T2 2x 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.
4. Stabilization Comparison
Neither Atlas Orion 21mm T2 2x or Samyang 135mm f/2 ED UMC - (Canon EF Mount) feature built-in image stabilization.
Winner: Tied — Neither have this feature
Regarding image stabilization: When a lens features built-in stabilization, it will actively help you hold the image steady by adjusting the optical elements inside the lens to compensate for movements. Do remember that lens stabilization is not required, but it may be suitable depending on your specific needs.
5. Autofocus Comparison
None of the lenses have an autofocus feature, which means that both lenses are manual focus lenses.
Winner: Tied — Neither have this feature
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.
6. Macro Comparison
Neither Atlas Orion 21mm T2 2x 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 Atlas Orion 21mm T2 2x and Samyang 135mm f/2 ED UMC (Canon EF Mount):
| Atlas Orion 21mm T2 2x | Samyang 135mm f/2 ED UMC - (Canon EF Mount) | |
 |  | |
| Brand | Atlas Lens Co. | Samyang |
| Lens Mount | Arri PL Mount | Canon EF |
| Focal Length | 21 mm | 85 mm |
| Largest Aperture | 2 | 2 |
| Anamorphic | Yes | Missing |
| Anamorphic Squeeze Factor | 2 | Missing |
| Type | Prime | Prime |
| Image Stabilization | No | No |
| Autofocus | Hayır | Hayır |
| Macro | No | No |
| Weather Seal | No | Missing |
| Full Frame Coverage | No | Missing |
| Lens Hood Included | No | Missing |