General

• Lens mount Canon EF
• Lens type Zoom
• Zoom type Two-touch (zoom ring)
• Internal zoom Yes
• Focal length (zoom) 17 - 40 mm
• Focal length (zoom, 35mm equiv.) 17 - 40 mm
• Field of view (zoom) 104 - 57 degrees
• Lens design Wide angle
• Camera format support APS-C, APS-H, Full frame

Focus

• Autofocus Yes
• Manual focus override Yes
• Built-in focus motor Ultrasonic
• Built-in CPU Yes
• Internal / rear focus Yes
• Focus distance (min) 0.9 feet
• Distance information Yes

Body

• Body material Metal
• Mount material Metal
• Water resistant Yes
• Weather sealed Yes