Canon 24-85mm f/3.5-4.5 EF USM
Rating: Ed: -, User: - (normalized, 0=useless, 50=average, 100=excellent).
Mount: Canon EF.
Aperture range: f/3.5-4.5 to f/32.
Optical zoom: 3.5x.
Close focus distance (CFD): 50 cm / 1.64 ft (from sensor plane).
CFD magnification: 1:6.3 / 0.16X.
Focus: AF (built-in, unknown type).
Filter diameter: 67 mm.
L x D, W: 70 x 73 mm, 380 g.
IR: Poor IR performance.
Canon is a multinational corporation headquartered in Tokyo, Japan specializing in the manufacture of imaging and optical products. Its products including cameras, lenses, flash units, scanners, photocopiers, printers and steppers (used in semiconductor fabrication). The company was founded in 1937 as Precision Optical Instruments Laboratory and renamed Canon Inc. in 1947.