EF Lenses


EF70-200mm f/2.8L IS III USM

  • Specifications
  • Block diagram
Marketed September 2018
Original Price 300,000 yen
Lens Construction (group) 19
Lens Construction (element) 23
No. of Diaphragm Blades 8 (circular aperture)
Minimum Aperture 32
Closest Focusing Distance (m) 1.2
Maximum Magnification (x) 0.21 (at 200mm)
Filter Diameter (mm) 77
Maximum Diameter x Length (mm) 88.8×199
Weight (g) Approx. 1,480

The EF70–200 f/2.8L IS III USM telephoto zoom lens is a renewed version of the approximately eight-year-old EF70–200 f/2.8L IS II USM (released in March 2010). While inheriting the optical design of its predecessor—23 elements in 19 groups, including such special optical materials as a fluorite lens and five Ultra Low Dispersion (UD) lenses—the lens employs revised coatings as well as Canon’s ASC (Air Sphere Coating), which exhibits exceptional anti-reflective properties for incident light that enters the lens at an almost vertical angle. These properties greatly reduce the occurrence of flaring and ghosting and realize improved performance when shooting backlit subjects, achieving high image quality in a variety of shooting environments.

Block diagram

Fluorite Lens UD lenses IS unit