Canon EF 17-40mm f/4L USM

Specifications

Specifications in detail

Optical Features / Specifications

• Angle of View (Horizontal, vertical, diagonal)

  93° - 49°20', 70°30' - 34°, 104° - 57°30'

• Lens Construction (Elements/Groups)

  12/9

• Number of Diaphragm Blades

  7

• Minimum Aperture

  22

• Closest Focusing Distance (m)

  0.28

• Maximum Magnification (x)

  0.24 (at 35mm)

• AF Actuator

  USM¹

Accessories

• Lens Cap
  E-77U / E-77II
• Lens Hood

  EW-83E

• Lens Case/Pouch

  -

• Magnification with Extension Tube EF12 II

  0.83 - 0.32

• Magnification with Extension Tube EF25 II

  1.02 - 0.70¹

Physical Specifications

• Filter Diameter (mm)

  77

• Max. Diameter x Length (mm)¹

  83.5 x 96.8

• Weight (g)

  500