Zeiss Ultra Prime 8R T2.8 vs Rokinon 12mm F2.8 ED AS NCS Fish-eye (Sony E Mount)
Zeiss Ultra Prime 8R T2.8 vs Rokinon 12mm F2.8 ED AS NCS Fish-eye (Sony E Mount)
When comparing Rokinon 12mm F2.8 ED AS NCS Fish-eye (Sony E Mount) and Zeiss Ultra Prime 8R T2.8, which one is better?
1. Largest Aperture Comparison
Both lenses share the same aperture of 2.8 — this means that you may buy both Zeiss Ultra Prime 8R T2.8 and Rokinon 12mm F2.8 ED AS NCS Fish-eye - (Sony E 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.
2. Focus Distance Comparison
Rokinon 12mm F2.8 ED AS NCS Fish-eye - (Sony E Mount) features a minimum focus distance of 20 cm while Zeiss Ultra Prime 8R T2.8 has a minimum focus distance of 35 cm. Depending on your shooting style, the Rokinon 12mm F2.8 ED AS NCS Fish-eye - (Sony E Mount) might be a better choice.
Winner: Rokinon 12mm F2.8 ED AS NCS Fish-eye (Sony E Mount)
Regarding minimum focus distance: The minimum focus distance of a lens is the smallest distance from the lens to the subject you want to be in focus; subjects closer than the lens' minimum focus distance will not be in focus. Whether or not this is important to you is up for you to decide, but some want to take close photos and videos and in those cases it's important to have a lens with a low minimum focus distance.
3. Lens Type Comparison
Both lenses are Prime lenses, which means that you can choose both Zeiss Ultra Prime 8R T2.8 or Rokinon 12mm F2.8 ED AS NCS Fish-eye - (Sony E 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 Ultra Prime 8R T2.8 and Rokinon 12mm F2.8 ED AS NCS Fish-eye (Sony E Mount):
| Zeiss Ultra Prime 8R T2.8 | Rokinon 12mm F2.8 ED AS NCS Fish-eye - (Sony E Mount) | |
 |  | |
| Brand | Zeiss | Rokinon |
| Weight | 2000 g | Missing |
| Lens Mount | Missing | Sony E |
| Focal Length | 8 mm | 12 mm |
| Largest Aperture | 2.8 | 2.8 |
| Anamorphic | Missing | No |
| Minimum Focus Distance | 35 cm | 20 cm |
| Type | Prime | Prime |
| Aperture Range | 2.8 - 22 | 2.8 - 22 |
| Lens Front Diameter (Not Filter Thread) | 134 mm | Missing |
| Lens Groups | Missing | 8 |
| Lens Elements | Missing | 12 |
| Image Stabilization | Missing | No |
| Autofocus | Missing | Evet |
| Macro | Missing | No |
| Weather Seal | Missing | No |
| Full Frame Coverage | Missing | Yes |
| Lens Hood Included | Missing | No |