| Attribute | Value |
|---|---|
| Lens Construction | 17 elements in 13 groups, including 2 fluorite elements and one super UD element; Super Spectra Coating (SSC); Air Sphere Coating (ASC) |
| Diameter | 163 mm |
| Diagonal Angle of View | 6.20 degree |
| Diaphragm Blades Type | circular |
| Aperture | 2.80 - 32.00 f |
| Notes | Image Stabilization (up to 5-stops of correction); Dust- and water-resistant construction; Detachable, rotatable tripod collar. |
| Filter Size | 52 mm |
| Magnification Ratio | 0.17 x |
| Closest Focus | 2.5 m |
| Focus Details | Inner focusing; full-time manual focus and Ring USM; Customizable Electronic Focusing Ring; 2 Focus Presets; |
| Length | 343 mm |
| Diaphragm Blades | 9 |
| APS Equivalent | 640mm |
| Focal Length | 400.00 mm |
| Image Circle | 35mm |
| Brand | Canon |
| Name | Canon EF 400mm f/2.8L IS III USM |
| Weight | 2840 g |
| Type | Telephoto Prime |
| 35mm Equivalent | Add |
| Effective Reduction in Aperture | Add |
| Focal Length Multiplier | Add |
| APS-C Equivalent | Add |
| Zoom System | Add |
| Front Element Rotation | Add |