Canon EF 24mm f/1.4L II USM EF24mm F1.4L II USM Instruction Manual - Page 2

Thank you for purchasing a Canon product. The Canon EF24mm f/1.4L II USM lens is a high-performance wide-angle lens designed for EOS cameras. ¡"USM" stands for Ultrasonic Motor. Conventions used in this instruction Warning to prevent lens or camera malfunction or damage. Features 1. Aspherical and UD lens elements result in outstanding image delineation. 2. SWC (Subwavelength Structure Coating) dramatically reduces ghosting and flare caused by light entering at an acute angle. 3. Ultrasonic motor (USM) for quick and quiet autofocusing. 4. Manual focusing is available after the subject comes into focus in autofocus mode (ONE SHOT AF). 5. A truly round aperture hole results in a nicer background blur. 6. Tight seal structure ensures excellent dustproof and drip-proof performance. Supplementary notes on using the lens and taking pictures. ENG-1