Canon CN-E 15.5-47mm T2.8 L S P vs Rokinon 12mm F2.8 ED AS NCS Fish-eye (Sony E Mount)
Canon CN-E 15.5-47mm T2.8 L S P 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 Canon CN-E 15.5-47mm T2.8 L S P, which one is better?
1. Largest Aperture Comparison
Both lenses share the same aperture of 2.8 — this means that you may buy both Canon CN-E 15.5-47mm T2.8 L S P 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. Lens Type Comparison
The Canon CN-E 15.5-47mm T2.8 L S P is a Zoom lens while the Rokinon 12mm F2.8 ED AS NCS Fish-eye - (Sony E Mount) is a Prime lens. Whether or not a zoom lens or a prime lens is what you need, is up to you to decide; they both have their respective strengths and weaknesses.
Winner: Tied — It depends on your gear
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 Canon CN-E 15.5-47mm T2.8 L S P and Rokinon 12mm F2.8 ED AS NCS Fish-eye (Sony E Mount):
| Canon CN-E 15.5-47mm T2.8 L S P | Rokinon 12mm F2.8 ED AS NCS Fish-eye - (Sony E Mount) | |
 |  | |
| Brand | Canon | Rokinon |
| Lens Mount | Missing | Sony E |
| Focal Length | 15.5 - 47 mm | 12 mm |
| Largest Aperture | 2.8 | 2.8 |
| Anamorphic | Missing | No |
| Minimum Focus Distance | Missing | 20 cm |
| Type | Zoom | Prime |
| Aperture Range | Missing | 2.8 - 22 |
| 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 |