The Canon EF14mm f/2.8L II USM lens is a high-performance, ultra-wide-angle lens developed exclusively for EOS cameras. Its features include aspherical lens elements and UD ultra-low dispersion lens elements that deliver clear, crisp images; a USM (ultrasonic motor) for silent and high-speed autofocus; manual focusing when the subject enters the focusing range in the autofocus mode (ONE SHOT AF (single-shot autofocus)); close-up photography as close as 0.2 m; a true circular aperture that produces a better background blur effect; and a tight sealing structure for excellent dust and drip resistance.
This manual explains how to safely handle the EF14mm f/2.8L II USM lens, including warnings about direct sunlight, temperature limits, and proper storage. It also defines the symbols used throughout the document.
Installation procedures, focus ring operation, close‑up focusing techniques, and detailed specifications such as focal length, aperture, minimum focusing distance, and magnification are covered. The document includes a parts list and a specifications table for quick reference. This manual is written in Chinese.
| Focal length | 14 mm |
|---|---|
| Maximum aperture | f/2.8 |
| Minimum focusing distance | 0.2 m |
| Maximum magnification | 0.15× |
| Weight | 645 g |
| Diagonal angle of view | 114° |
The lens can focus as close as 0.2 m.