Canon L EF 100-400mm f/4.5-5.6L IS II USM
Integrating one fluorite and one Super UD element with Air Sphere Coating, this lens delivers sharp, high-contrast images with minimal aberrations, supported by a 4-stop Image Stabilizer for handheld clarity. A rotating zoom ring with adjustable torque and comprehensive weather sealing with a fluorine coating set it apart for reliable, precise control in tough conditions. It’s best for wildlife and sports photographers who need a rugged, stabilized telephoto zoom for tracking fast-moving subjects from a distance.
Focal length 100-400mm
Aperture f/100
Mount Canon EF
stabilization Yes
Weather Sealed Yes
Weight 1640 g
af type USM
lens type zoom
68 Overall Score
Price CA$3,733
Snapshot
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews - so you can see whether early praise held up.
Owner sentiment has held steady over time
88/100Our AI sentiment read
Based on 120 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Zoom |
| Focal Length Min | 100 |
| Focal Length Max | 400 |
| Elements | 21 |
| Groups | 16 |
| Aspherical Elements | 4 |
| ED Elements | 1 |
| Coating | Air Sphere Coating |
Aperture
| Max Aperture | f/100 |
| Min Aperture | 4.5-5.6 |
| Constant | No |
| Diaphragm Blades | 9 |
Build
| Mount | Canon EF |
| Format | full-frame |
| Weather Sealed | Yes |
| Weight | 1.6 kg / 3.6 lbs |
| Filter Thread | 77 |
AF & Stabilization
| AF Type | USM |
| Stabilization | Yes |
| Stabilization Stops | 4 |
Focus
| Min Focus Distance | 980 |
| Max Magnification | 0.31x |
vs Competition
| Spec | Canon L EF 100-400mm f/4.5-5.6L IS II USM | Tamron Di III 17-70mm f/2.8 Di III-A VC RXD | Nikon NIKKOR Z 17-28mm f/2.8 | Sigma Contemporary 16-28mm f/2.8 DG DN | Panasonic Leica DG Vario-Elmarit H-ES12060 | Sony G SELP28135G.SYX |
|---|---|---|---|---|---|---|
| Focal Length | 100-400mm | 17-70mm | 17-28mm | 16-28mm | 12-60mm | 28-135mm |
| Max Aperture | f/100 | f/2.8 | f/2.8 | f/2.8 | f/2.8 | f/4 |
| Mount | Canon EF | Fujifilm X | Nikon Z | Sony E | Micro Four Thirds | Sony E |
| Stabilization | true | true | false | false | true | true |
| Weather Sealed | true | true | true | true | true | true |
| Weight (g) | 1640 | 544 | 450 | 450 | 320 | 420 |
| AF Type | USM | RXD | Stepping Motor | Stepping AF Motor | linear motor | SSM |
| Lens Type | zoom | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Canon L EF 100-400mm f/4.5-5.6L IS II USM | 94.4 | 1 | 18 | 32.4 | 98 | 0.7 | 80.4 | 88 | 85.1 | 93.4 |
| Tamron Di III 17-70mm f/2.8 Di III-A VC RXD Compare | 53.7 | 87.4 | 69.6 | 85.9 | 91 | 84.6 | 63.3 | 89.3 | 85.1 | 83.4 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 87.4 | 87.4 | 75.9 | 85.9 | 88 | 84.6 | 90.8 | 67.3 | 68.8 | 37.8 |
| Sigma Contemporary 16-28mm f/2.8 DG DN Compare | 87.4 | 87.4 | 75.9 | 77.8 | 97.2 | 84.6 | 75.5 | 68 | 62.7 | 37.8 |
| Panasonic Leica DG Vario-Elmarit H-ES12060 Compare | 98.1 | 87.4 | 84.6 | 51.9 | 91 | 84.6 | 44.2 | 93.1 | 67.8 | 83.4 |
| Sony G SELP28135G.SYX Compare | 94.4 | 78.4 | 77.7 | 34.1 | 88 | 67.1 | 63.3 | 92.4 | 55.7 | 93.4 |
Price
Value & Pricing
From CA$3,733
