| Attribute | Value |
|---|---|
| Lens Construction | 7 elements in 6 groups, including 1 UD and 1 S-UD element |
| Diameter | 90 mm |
| Diagonal Angle of View | 6.20 degree |
| Aperture | 5.60 - 32.00 f |
| Notes | Built-in hood; detachable tripod mount |
| Filter Size | 77 mm |
| Magnification Ratio | 0.12 x |
| Closest Focus | 3.5 m |
| Focus Details | Inner focusing; full-time manual focus and USM |
| Length | 256 mm |
| Diaphragm Blades | 8 |
| APS Equivalent | 640mm |
| Focal Length | 400.00 mm |
| Image Circle | 35mm |
| Brand | Canon |
| Name | Canon EF 400mm f/5.6L USM |
| Weight | 1250 g |
| Type | Telephoto Prime |
| 35mm Equivalent | Add |
| Effective Reduction in Aperture | Add |
| Focal Length Multiplier | Add |
| APS-C Equivalent | Add |
| Zoom System | Add |
| Diaphragm Blades Type | Add |
| Front Element Rotation | Add |