Canon Canon EF 400mm f/2.8L IS III USM Lens Review
Focal Length 400mm
Max Aperture f/2.8
Mount Canon EF
Stabilization true
Weather Sealed
Weight G 2835
Af Type Autofocus
Lens Type Zoom
51 Overall Score
Overview
Performance
Pros & Cons
Pros
- Strong optical (94th percentile) 94th
- Strong stabilization (89th percentile) 89th
Cons
- Below average build (6th percentile) 6th
Specifications
Full Specifications
Optics
| Type | Zoom |
| Focal Length Min | 400 |
| Focal Length Max | 400 |
| Elements | 17 |
| Groups | 13 |
Aperture
| Max Aperture | f/2.8 |
| Min Aperture | f/32 |
| Diaphragm Blades | 9 |
Build
| Mount | Canon EF |
| Format | Full-Frame |
| Weight | 2.8 kg / 6.3 lbs |
| Filter Thread | 52 |
AF & Stabilization
| AF Type | Autofocus |
| Stabilization | Yes |
Focus
| Min Focus Distance | 2500 |
| Max Magnification | 1:5.9 |
Value & Pricing
Feb 18, 2026 $13,399
Feb 18, 2026 $13,399 Unavailable
Feb 18, 2026 $13,399 Unavailable
vs Competition
Verdict
Deal Tracker
Feb 18, 2026 $13,399
Feb 18, 2026 $13,399 Unavailable
Feb 18, 2026 $13,399 Unavailable