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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.
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“USM” stands for Ultrasonic Motor.
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 dust-
proof 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.
Conventions used in this instruction
Warning to prevent lens or camera
malfunction or damage.
Supplementary notes on using the lens
and taking pictures.
