The Canon EF 24-105mm f/4L IS USM was originally designed to complement Canon's first enthusiast full-frame camera, the EOS 5D, and combines a useful standard zoom range, a constant maximum aperture, good optical quality and effective image stabilization. Optical construction includes one Super-UD glass element and three aspherical lenses to minimize chromatic aberration and distortion. The result is very good image quality, especially when stopped down a little. Canon's ring-type USM gives silent but quick AF, along with full-time manual focus. Like Canon's high-end DSLRs, this lens is also dust and moisture-resistant.
| Lens type Zoom lens |
| Max Format size 35mm FF |
| Focal length 24–105 mm |
| Image stabilization Yes (3 stops claimed) |
| Lens mount Canon EF |
| Aperture |
| Maximum aperture F4 |
| Minimum aperture F22 |
| Aperture ring No |
| Number of diaphragm blades 8 |
| Aperture notes circular aperture |
| Optics |
| Elements 18 |
| Groups 13 |
| Special elements / coatings 1 Super-UD glass element 3 aspherical elements |
| Focus |
| Minimum focus 0.45 m (17.72″) |
| Maximum magnification 0.23× |
| Autofocus Yes |
| Motor type Ring-type ultrasonic |
| Full time manual Yes |
| Focus method Internal |
| Distance scale Yes |
| DoF scale No |
| Physical |
| Weight 670 g (1.48 lb) |
| Diameter 84 mm (3.29″) |
| Length 107 mm (4.21″) |
| Materials Plastic barrel, metal mount |
| Sealing Yes |
| Colour black |
| Zoom method Rotary (extending) |
| Zoom lock No |
| Filter thread 77 mm |
| Filter notes does not rotate on focus |
| Hood supplied Yes |
| Hood product code EW-83H |
| Optional accessories Soft case LP1219 |
