The Canon EF24mm f/1.4L II USM lens is a high-performance wide-angle lens developed exclusively for EOS cameras. It features aspherical lens elements and UD ultra-low dispersion lens elements to produce clear images with sharp outlines. SWC (subwavelength structure coating) greatly reduces ghosts and flare caused by light entering at a sharp angle. The USM (ultrasonic motor) provides high-speed, silent autofocusing. Manual focusing is possible when the subject enters the focusing range in autofocus mode (ONE SHOT AF (single-shot autofocus)). A true round aperture creates a better background blur. A tight sealing structure ensures excellent dust and drip resistance.
The manual explains safe handling and storage of the EF24mm f/1.4L II USM lens, including warnings about temperature, humidity, and direct sunlight. It also details how to install the lens, attach accessories such as the lens hood and filter, and maintain the lens to avoid damage.
Operating instructions cover the three focusing modes (AF, MF, ONE SHOT AF), how to select them, and how to use the focus distance scale. The document finishes with technical data such as focal length, aperture, filter size, dimensions, and weight. This manual is written in Chinese.
| Focal length | 24 mm |
|---|---|
| Maximum aperture | f/1.4 |
| Minimum focusing distance | 0.25 m |
| Maximum magnification | 0.17× |
| Filter thread diameter | 77 mm |
| Dimensions (width × height) | 139 mm × 208 mm |
| Weight | 650 g |