The EF 11–24 mm 4L USM lens is a professional wide-angle lens made by Canon Inc. It was announced on February 5, 2015,[1] and at that time was the widest rectilinear lens ever made for the 35 mm format in either its film or digital versions.[2]
The lens has an EF mount to work with the EOS line of cameras. Other than the front element, it is sealed against dust and water, and features a diaphragm which remains nearly circular. It produces minimally distorted images.
| Attribute | 4L USM | ||
|---|---|---|---|
| Image | |||
| Key features | |||
| Full-frame compatible | colspan=1 | ||
| Image stabilizer | colspan=1 | ||
| Environmental Sealing | colspan=1 | ||
| Ultrasonic Motor | colspan=1 | ||
| L-series | colspan=1 | ||
| Diffractive Optics | colspan=1 | ||
| Technical data | |||
| Aperture (max–min) | 4–22 | ||
| Construction | 11 groups / 16 elements | ||
| 9 | ||
| Closest focusing distance | 0.28 m / 11" (at 24 mm) | ||
| Max. magnification | 0.16× (at 24 mm) | ||
| Horizontal viewing angle | 117° 10′–74° | ||
| Vertical viewing angle | 95° 10′–53° | ||
| Diagonal viewing angle | 126° 05′–84° 00′ | ||
| Physical data | |||
| Weight | 1180 g / 41.6 oz | ||
| Maximum diameter | 108 mm / 4.3" | ||
| Length | 243 mm / 5.2" | ||
| Filter diameter | rear | ||
| Accessories | |||
| Lens hood | n/a | ||
| Retail information | |||
| Release date | February 2015 | ||
| Currently in production? | |||
| MSRP US$ | $2,999.00 | ||