Canon CN-E 15.5-47mm T2.8 L S P vs Canon RF 135mm F1.8L IS USM
Canon CN-E 15.5-47mm T2.8 L S P vs Canon RF 135mm F1.8L IS USM
When comparing Canon RF 135mm F1.8L IS USM and Canon CN-E 15.5-47mm T2.8 L S P, which one is better?
1. Largest Aperture Comparison
The Canon RF 135mm F1.8L IS USM has the largest aperture of the two lenses at 1.8 compared to the 2.8 aperture of Canon CN-E 15.5-47mm T2.8 L S P. This means that you get more light to your sensor using Canon RF 135mm F1.8L IS USM wide open, and therefore it might be a better lens in dark situations.
Winner: Canon RF 135mm F1.8L IS USM
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 Canon RF 135mm F1.8L IS USM 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 Canon RF 135mm F1.8L IS USM:
| Canon CN-E 15.5-47mm T2.8 L S P | Canon RF 135mm F1.8L IS USM | |
 |  | |
| Brand | Canon | Canon |
| Weight | Missing | 935 g |
| Lens Mount | Missing | Canon RF |
| Focal Length | 15.5 - 47 mm | 135 mm |
| Largest Aperture | 2.8 | 1.8 |
| Anamorphic | Missing | No |
| Minimum Focus Distance | Missing | 70 cm |
| Type | Zoom | Prime |
| Aperture Range | Missing | 1.8 - 22 |
| Filter Thread Diameter | Missing | 82 |
| Aperture Blades | Missing | 9 |
| Lens Groups | Missing | 12 |
| Lens Elements | Missing | 17 |
| Image Stabilization | Missing | Yes |
| Autofocus | Missing | Evet |
| Macro | Missing | No |
| Weather Seal | Missing | Yes |
| Full Frame Coverage | Missing | Yes |
| Lens Hood Included | Missing | Yes |