Canon EF 70-200mm f/2.8L IS III USM

Focal Length 70 – 200 mm

35 mm Equivalent (APS-C) ≈ 112 – 320 mm

Maximum Aperture Constant f/2.8

Minimum Aperture f/32

Lens Construction 23 elements in 19 groups (1 fluorite, 5 UD)

Diaphragm Blades 8 (circular)

Angle of View 34° – 12° (diag.)

Minimum Focus Distance 1.2 m (47.2″)

Maximum Magnification 0.21× (at 200 mm)

Autofocus Motor Ring-type USM

Full-time Manual Focus Yes

Image Stabilization 3.5 stops (CIPA), tripod-sensing, 2 modes (I/II)

Weather Sealing Yes (gasket + internal seals; filter required for full seal)

Extender Compatible Yes (1.4× → 98-280 mm; 2× → 140-400 mm)

Filter Thread 77 mm (non-rotating front)

Dimensions (Ø × L) 88.8 × 199 mm

Weight ≈ 1 480 g (52 oz)

Lens Hood ET-87 (included, bayonet)

Tripod Collar Removable, included

Case LZ1326 soft case (included)

Release Date September 2018