Lens Comparison
Canon RF 100-400mm f/5.6-8 IS USM vs Sigma 18-50mm f/2.8 DC DN Contemporary (Canon RF)
Key Differences
- Sigma 18-50mm f/2.8 DC DN Contemporary (Canon RF) has a better min focus distance (13 cm vs 88 cm).
- Sigma 18-50mm f/2.8 DC DN Contemporary (Canon RF) has a better weight (290g (10.2 oz) vs 635g (1.40 lb)).
- Sigma 18-50mm f/2.8 DC DN Contemporary (Canon RF) has a better maximum aperture (f/2.8 vs f/5.6).
- Sigma 18-50mm f/2.8 DC DN Contemporary (Canon RF) has a better length (76.9mm vs 147mm).
- Sigma 18-50mm f/2.8 DC DN Contemporary (Canon RF) has a better max magnification (0.5x vs 0.41x).
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 100-400mm | 18-50mm |
| Lens Type | Zoom | Zoom |
| Optical Elements | 18 | 13 |
| Optical Groups | 12 | 10 |
| Aperture & Iris | ||
| Maximum Aperture | f/5.6 | f/2.8 |
| Minimum Aperture | f/32 | f/22 |
| Aperture Blades | 9 | 9 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | Full-Frame | APS-C |
| Lens Mount | Canon RF | Canon RF |
| Angle of View | − | − |
| 35mm Equivalent | − | 29-80mm |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | Nano USM | HLA |
| Focus Limiter | No | No |
| AF/MF Switch | Yes | Yes |
| Min Focus Distance | 88 cm | 13 cm |
| Max Magnification | 0.41x | 0.5x |
| Stabilization & Video | ||
| Optical Stabilization | Yes | No |
| Aperture Ring | No | Yes |
| Declickable Aperture | No | Yes |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $649 | $599 |
| Filter Size | 67mm | 52mm |
| Diameter | 79mm | 65.4mm |
| Length | 147mm | 76.9mm |
| Weight | 635g (1.40 lb) | 290g (10.2 oz) |
| Weather Sealed | No | Yes |
| Tripod Collar | No | No |
