Sigma EX DC HSM 4.5mm f/2.8 5mm
The fast f/2.8 aperture and 180-degree circular projection on APS-C sensors make this a specialized tool for low-light scenarios like astrophotography. Its equisolid angle projection method provides quantifiable data for scientific use, while the HSM motor enables quiet autofocus with full-time manual override. This lens is best for aurora photographers and researchers needing precise solid angle measurements of sky or vegetation distribution.
Aperçu
Avantages et inconvénients
Points forts
- Strong macro (92nd percentile) 92nd
- Strong aperture (86th percentile) 86th
- Strong bokeh (84th percentile) 84th
Points faibles
- Below average user sentiment (7th 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 13 avis clients datés, regroupés par trimestre civil. L'analyse par période est en anglais.
Les preuves
Performances
Caractéristiques techniques
Fiche technique complète
Optics
| Type | Fisheye |
| Focal Length Min | 4 |
| Focal Length Max | 4 |
| Coating | Super Multi-Layer Coating |
Aperture
| Max Aperture | f/2.8 |
| Min Aperture | f/2.8 |
| Constant | Yes |
Build
| Mount | Nikon F |
| Format | APS-C |
| Weight | 0.5 kg / 1.0 lbs |
AF & Stabilization
| AF Type | HSM |
| Stabilization | No |
Focus
| Min Focus Distance | 135 |
| Max Magnification | 1:6 |
Face à la concurrence
| Spec | Sigma EX DC HSM 4.5mm f/2.8 5mm | Nikon NIKKOR Z 17-28mm f/2.8 | Tamron Di III 28-75mm f/2.8 VXD G2 | Panasonic Leica DG Vario-Elmarit H-ES12060 | Canon RF 28-70mm f/2.8 IS STM | Sony G SELP28135G.SYX |
|---|---|---|---|---|---|---|
| Focal Length | 4mm | 17-28mm | 28-75mm | 12-60mm | 28-70mm | 28-135mm |
| Max Aperture | f/2.8 | f/2.8 | f/2.8 | f/2.8 | f/22 | f/4 |
| Mount | Nikon F | Nikon Z | Sony E | Micro Four Thirds | Canon RF | Sony E |
| Stabilization | false | false | false | true | true | true |
| Weather Sealed | false | true | true | true | true | true |
| Weight (g) | 472 | 450 | 540 | 320 | 495 | 420 |
| AF Type | HSM | Stepping Motor | VXD | linear motor | STM | SSM |
| Lens Type | fisheye | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Produit | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Preuve sociale | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Sigma EX DC HSM 4.5mm f/2.8 5mm | 54.6 | 83.5 | 39.1 | 91.5 | 40.4 | 85.8 | 7.2 | 33.6 | 54.1 | 38 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 87 | 88.1 | 73.6 | 86.3 | 87 | 85.8 | 90.8 | 68.1 | 64.5 | 38 |
| Tamron Di III 28-75mm f/2.8 VXD G2 Compare | 54.6 | 88.1 | 67.3 | 87.3 | 87.8 | 85.8 | 80.4 | 78.2 | 83 | 38 |
| Panasonic Leica DG Vario-Elmarit H-ES12060 Compare | 98 | 88.1 | 83.2 | 50.4 | 90.2 | 85.8 | 44.2 | 93.1 | 63.4 | 83.2 |
| Canon RF 28-70mm f/2.8 IS STM Compare | 87 | 26 | 70.2 | 80.4 | 85 | 22.6 | 98.1 | 77.2 | 87.8 | 98.5 |
| Sony G SELP28135G.SYX Compare | 94.2 | 80.2 | 75.5 | 31.2 | 87 | 70 | 63.3 | 92.4 | 50.1 | 92.8 |
Scores par usage
Un test complet arrive bientôt. Les caractéristiques, scores, prix et graphiques ci-dessus sont toujours à jour.
