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.
Aperçu
Avantages et inconvénients
Points forts
- Strong optical (84th percentile) 84th
- Strong macro (82nd percentile) 82nd
- Strong user sentiment (68th percentile) 68th
Points faibles
- Below average af (15th percentile)
- Below average bokeh (16th percentile)
- Below average aperture (24th percentile)
- Below average versatility (34th percentile)
L'avis des propriétaires
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.
Les preuves
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 | f/22 |
| Min Aperture | f/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 | 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 | Canon RF 28-70mm f/2.8 IS STM | Panasonic LUMIX S S-R28200 | Sony G Master SEL70200GM2 |
|---|---|---|---|---|---|---|
| Focal Length | 20mm | 16-300mm | 18-300mm | 28-70mm | 28-200mm | 70-200mm |
| Max Aperture | f/22 | f/3.5 | f/3.5 | f/2.8 | f/4 | f/2.8 |
| Mount | Canon EF | Sony E | Fujifilm X | Canon RF | L-Mount | Sony E |
| Stabilization | false | true | true | true | true | true |
| Weather Sealed | false | true | false | true | true | true |
| Weight (g) | 497 | 615 | 92 | 495 | 413 | 1045 |
| AF Type | manual focus only | HLA | VXD linear motor | STM | Autofocus | XD Linear Motors |
| Lens Type | prime | zoom | zoom | zoom | macro | telephoto |
| Compare | Compare | Compare | Compare | Compare |
| Produit | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Preuve sociale | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Rokinon RK20M-C 20mm | 15.2 | 15.7 | 49.4 | 81.8 | 83.5 | 24.1 | 68.4 | 34 | 39.7 | 35.6 |
| Sigma Contemporary 16-300mm f/3.5-6.7 DC OS Compare | 54.7 | 84.2 | 57.9 | 86.5 | 98.8 | 76.9 | 0 | 99.6 | 83 | 99.1 |
| Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD Compare | 98.1 | 74.9 | 96.3 | 88.4 | 73.5 | 76.9 | 34.7 | 99.2 | 83 | 80.5 |
| Canon RF 28-70mm f/2.8 IS STM Compare | 85.5 | 86.1 | 67.2 | 77.4 | 84.4 | 83.7 | 0 | 77.4 | 88 | 98.2 |
| Panasonic LUMIX S S-R28200 Compare | 54.7 | 77.8 | 73.9 | 89.5 | 90.9 | 71.4 | 0 | 95.7 | 75.3 | 99.4 |
| Sony G Master SEL70200GM2 Compare | 98.1 | 90.7 | 33.5 | 33.1 | 87.1 | 83.7 | 83.3 | 79.4 | 94.8 | 80.5 |
Scores par usage
Un test complet arrive bientôt. Les caractéristiques, scores, prix et graphiques ci-dessus sont toujours à jour.
