RF400mm f/2.8L IS USM
![](https://asia.canon/media/image/2021/04/12/9f0d8fe372a24899a316f9e7c677a628_RF400mm+f2.8L+IS+USM+Front+Slant+w+tripod+ring.png)
Angle of View (Diagonal) | 06°10′ |
Angle of View (Horizontal) | 05°10′ |
Angle of View (Vertical) | 03°30′ |
Closest Focusing Distance (m, ft) | 2.5 / 8.20 |
Construction (Groups Elements) | 13,17 |
Diameter x Length (mm) (Approx.) | 163 x 367 |
Distance Scale | - |
Drive System | Ring USM |
Filter Size (mm) | 52 (Drop-in) |
Max. Magnification (x) | 0.17 |
Min. Aperture | 32 |
No. of Diaphragm Blades | 9 |
Anti-dust and Moisture | Supported |
Weight (g) (Approx.) | 2890 |
Accessories (Lens Cap) | Lens Cap E-180E & Lens Dust Cap RF (included) |
Accessories (Lens Hood) | Lens Hood ET-155 (WIII) (included) / Lens Hood ET-155B (sold separately) |
Accessories (Lens Bag) | Lens Case LS400 (included) |