Thank you for purchasing a Canon product.
The Canon
1.Designed for use with three different image sensor sizes.
2.Aspherical and UD lens elements result in outstanding image delineation.
3.SWC (Subwavelength Structure Coating) is utilized to significantly reduce occurrences of flare and ghost created by quite large incident angles of light.
4.A fluorine coating has been applied to the lens’s front and rear lens elements which allows dust to be wiped from the outside of the lens more easily compared with previous lenses.
5.Ultrasonic motor (USM) for quick and quiet autofocusing.
6.Manual focusing is available after the subject comes into focus in autofocus mode (ONE SHOT AF).
7.A truly round aperture hole results in a nicer background blur.
8.Equipped with a zoom limiter function which restricts the zoom range.
9.Tight seal structure ensures excellent dust- proof and
• "USM" stands for Ultrasonic Motor.
Conventions used in this instructionWarning to prevent lens or camera malfunction or damage.
Supplementary notes on using the lens and taking pictures.