Lens type : Zoom lens
Max Format size : 35mm FF
Focal length : 15-30 mm
Image stabilization : Yes
Lens mount : Canon EF
Maximum aperture : F2.8
Minimum aperture : F22.0
Aperture ring : No
Number of diaphragm blades : 9
Elements : 18
Groups : 13
Special elements / coatings : Fluorine coating on front element, eBAND anti-reflective coating, XGM (expanded glass molded aspherical), low dispersion elements
Minimum focus : 0.28 m (11.02 in)
Maximum magnification : 5x
Autofocus : Yes
Motor type : Ultrasonic
Full time manual : Yes
Distance scale : Yes