- Specifications
- Block diagram
| Marketed | November 1998 |
| Original Price | 260,000 yen (w/case, hood and tripod collar) |
| Lens Construction (group) | 14 |
| Lens Construction (element) | 17 |
| No. of Diaphragm Blades | 8 |
| Minimum Aperture | 32-38 (32-40 for cameras featuring 1/3-stop markings) |
| Closest Focusing Distance (m) | 1.8 |
| Maximum Magnification (x) | 0.2 |
| Filter Diameter (mm) | 77 |
| Maximum Diameter X Length (mm) | 92 X 189 |
| Weight (g) | 1,360 |
The Canon EF 100-400mm f/4.5-5.6L IS USM lens is the fourth EF lens, and first L-type zoom lens, to incorporate an Image Stabilizer. The inclusion of the Image Stabilizer counteracts the effect of camera shake, providing the equivalent of a shutter speed that is two stops faster.
Fluorite Lenses 
Super UD Lens