Canon EF 50mm f / 1.2L USM EF50mm F1.2L USM Instruction Manual - Page 2

Thank you for purchasing a Canon product. The Canon EF50mm f/1.2L USM lens is a high-performance, large-aperture standard lens with a large-diameter, high-precision, aspherical lens element designed for EOS cameras. The lens is suitable for portraits and other types of photographs making full use of the large-diameter lens feature for nice background blur. ¡"USM" stands for Ultrasonic Motor. Conventions used in this instruction Warning to prevent lens or camera malfunction or damage. Features 1. Large-diameter, high-precision aspheric lens element for excellent imaging performance even at the maximum aperture. 2. Ultrasonic motor (USM) for quick and quiet autofocusing. 3. Manual focusing is available after the subject comes into focus in autofocus mode (ONE SHOT AF). 4. A truly round aperture hole results in a nicer background blur. 5. Tight seal structure ensures excellent dustproof and drip-proof performance. • Since the front element of this lens moves when focusing, you need to attach a Canon PROTECT filter sold separately for adequate dust-and water-resistant performance. Without a filter, the lens is not dust or water resistant. Supplementary notes on using the lens and taking pictures. ENG-1