Rokinon RK20M-C 20mm
The f/1.8 aperture and 20mm full-frame field of view, supported by 2 aspherical and 3 ED elements with Ultra Multi-Coating, produce sharp, contrasty images with minimal flare. Its 497g weight and damped manual focus ring encourage precise, deliberate composition on a tripod. This lens is a solid choice for astrophotographers and low‑light landscape shooters using Canon EF who can trade autofocus for strong wide‑angle optics.
Snapshot
Avantages et inconvénients
Pros
- Strong optical (84th percentile) 84th
- Strong macro (81th percentile) 81th
Cons
- Below average af (14th percentile)
- Below average bokeh (16th percentile)
- Below average aperture (24th percentile)
- Below average versatility (34th percentile)
What owners think
L'évolution de l'avis des propriétaires dans le temps
ExclusivitéD'après la date à laquelle les clients ont rédigé leurs avis — pour voir si l'enthousiasme initial s'est confirmé.
D'après 7 avis clients datés, regroupés par trimestre civil. L'analyse par période est en anglais.
The proof
Performances
Caractéristiques techniques
Fiche technique complète
Optics
| Type | prime |
| Focal Length Min | 20 |
| Focal Length Max | 20 |
| Elements | 13 |
| Groups | 12 |
| Aspherical Elements | 2 |
| ED Elements | 3 |
| Coating | Ultra Multi-Coating |
Aperture
| Max Aperture | 22 |
| Min Aperture | 1.8 |
| Constant | No |
| Diaphragm Blades | 7 |
Build
| Mount | Canon EF |
| Format | full-frame |
| Weather Sealed | No |
| Weight | 0.5 kg / 1.1 lbs |
| Filter Thread | 77 |
AF & Stabilization
| AF Type | manual focus only |
| Stabilization | No |
Focus
| Min Focus Distance | 200 |
Face à la concurrence
| Spec | Rokinon RK20M-C 20mm | Nikon NIKKOR Z 28-400mm f/4-8 VR | Sigma Contemporary 16-300mm f/3.5-6.7 DC OS | Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD | Viltrox 13mm F1.4 f/1.4 E STM Auto Focus Ultra Wide Angle | Panasonic LUMIX S S-R28200 |
|---|---|---|---|---|---|---|
| Focal Length | 20mm | 28-400mm | 16-300mm | 18-300mm | 13mm | 28-200mm |
| Max Aperture | 22 | f/4 | f/3.5 | f/3.5 | f/1.4 | f/4 |
| Mount | Canon EF | Nikon Z | Sony E | Fuji X | Sony E | L-Mount |
| Stabilization | false | true | true | true | true | true |
| Weather Sealed | false | true | true | false | false | true |
| Weight (g) | 497 | 726 | 615 | 92 | 415 | 413 |
| AF Type | manual focus only | STM | HLA | VXD linear motor | STM | Autofocus |
| Lens Type | prime | zoom | zoom | zoom | Wide-Angle | macro |
| Compare | Compare | Compare | Compare | Compare |
| Product | Af | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Rokinon RK20M-C 20mm | 14 | 15.7 | 50.7 | 81.3 | 84.3 | 24.4 | 63.6 | 34.2 | 37.2 | 36.1 |
| Nikon NIKKOR Z 28-400mm f/4-8 VR Compare | 86.8 | 77.8 | 51.6 | 81.3 | 97 | 71.2 | 0 | 98.9 | 84.6 | 98.3 |
| Sigma Contemporary 16-300mm f/3.5-6.7 DC OS Compare | 54.5 | 84.3 | 59 | 85.9 | 98.9 | 76.9 | 0 | 99.6 | 68.8 | 99.1 |
| Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD Compare | 98.3 | 74.8 | 96.6 | 87.8 | 74.6 | 76.9 | 30.1 | 99.2 | 51.8 | 81.3 |
| Viltrox 13mm F1.4 f/1.4 E STM Auto Focus Ultra Wide Angle Compare | 86.8 | 96.7 | 42.2 | 89.5 | 82.6 | 96.4 | 80.9 | 34.2 | 75.9 | 81.3 |
| Panasonic LUMIX S S-R28200 Compare | 54.5 | 77.8 | 74.4 | 70.8 | 91.2 | 71.2 | 0 | 95.6 | 65.3 | 99.5 |
Scores par usage
Un test complet arrive bientôt. Les caractéristiques, scores, prix et graphiques ci-dessus sont toujours à jour.
