Canon RF 100-400mm f/5.6-8 IS USM
The constant f/5.6 aperture across a 100-400mm zoom range provides consistent exposure control for wildlife and sports, though the 2268g weight demands solid support. The bundled IP67 weatherproof hard case adds practical, dust- and water-resistant protection for transport and storage. This lens is best for outdoor photographers needing a versatile telephoto reach for distant subjects without a premium price tag.
Focal length 100-400mm
Aperture f/5.6
Mount Canon RF
Weight 2268 g
lens type telephoto-zoom
23 Overall Score
Price $750
Snapshot
Pros & Cons
Pros
- Strong versatility (88th percentile) 88th
Cons
- Below average build (1st percentile)
- Below average social proof (3rd percentile)
- Below average macro (14th percentile)
- Below average optical (20th percentile)
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Telephoto-zoom |
| Focal Length Min | 100 |
| Focal Length Max | 400 |
Aperture
| Max Aperture | f/5.6 |
| Min Aperture | f/8 |
| Constant | Yes |
Build
| Mount | Canon RF |
| Weight | 2.3 kg / 5.0 lbs |
vs Competition
| Spec | Canon RF 100-400mm f/5.6-8 IS USM | Tamron Di III VC 28-300mm f/4-7.1 VXD | Sigma Contemporary 18-50mm f/2.8 DC DN | Nikon NIKKOR Z 17-28mm f/2.8 | Panasonic Leica DG Vario-Elmarit H-ES12035 | Sony E 18-135mm f/3.5-5.6 OSS |
|---|---|---|---|---|---|---|
| Focal Length | 100-400mm | 28-300mm | 18-50mm | 17-28mm | 12-35mm | 18-135mm |
| Max Aperture | f/5.6 | f/4 | f/2.8 | f/2.8 | f/2.8 | f/3.5 |
| Mount | Canon RF | Sony E | Sony E | Nikon Z | Micro Four Thirds | Sony E |
| Stabilization | false | true | false | false | true | true |
| Weather Sealed | false | true | true | true | true | false |
| Weight (g) | 2268 | 590 | 290 | 450 | 306 | 326 |
| AF Type | - | VXD linear motor | stepping motor | Stepping Motor | Autofocus | Linear motor |
| Lens Type | telephoto-zoom | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Canon RF 100-400mm f/5.6-8 IS USM | 53.9 | 53 | 1.1 | 14.2 | 20.2 | 53.2 | 88.2 | 2.8 | 36.8 |
| Tamron Di III VC 28-300mm f/4-7.1 VXD Compare | 98 | 78.2 | 65.1 | 85.8 | 96.7 | 66.3 | 97.7 | 55 | 82.4 |
| Sigma Contemporary 18-50mm f/2.8 DC DN Compare | 86.9 | 82.1 | 86.1 | 91.7 | 82.2 | 84.2 | 78.6 | 89.6 | 36.8 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 86.9 | 87.3 | 75.2 | 85.8 | 88.2 | 84.2 | 68 | 69.1 | 36.8 |
| Panasonic Leica DG Vario-Elmarit H-ES12035 Compare | 53.9 | 82.1 | 85.4 | 51 | 86.5 | 84.2 | 80.6 | 85.1 | 96.9 |
| Sony E 18-135mm f/3.5-5.6 OSS Compare | 98 | 75.7 | 72.5 | 40.3 | 78.5 | 77.6 | 95.8 | 89.6 | 82.4 |
Price
Value & Pricing
From $750
Best Buy 1 offer From $750
Amazon 1 offer From $750
Price History
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
