Canon EF 100-400mm lens

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The 100-400mm F4.5-5.6 lens with its lens hood and bag
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The 100-400mm F4.5-5.6 lens with its lens hood and bag

The EF 100-400mm f/4.5-5.6L IS USM is a professional EF mount telephoto zoom lens introduced by Canon Inc. in September 1998.

Due to its large zoom range and relatively low price it is a popular lens amongst amateur photgraphers.

[edit] Specifications

Attribute F4.5-5.6L
Image stabilizer Yes Yes
Ultrasonic Motor Yes Yes
L-series Yes Yes
Diffractive Optics No No
Macro No No
Maximum aperture 4.5
Minimum aperture 22
Weight 3 lbs/1360 g
Maximum diameter 3.6 in/92mm
Length 7.4 in/189 mm
Filter diameter 77 mm
Horizontal viewing angle 20° – 6°
Diagonal viewing angle 20° – 5°
Vertical viewing angle 14° – 3°
Groups/elements 17/14
# of diaphragm blades 4
Closest focusing distance 5.9 ft/1.8m m
Release date September 1998
MSRP $ $1,400.00
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