EF 17-40mm f/4L USM

L-series super telephoto zoom lens equipped with an Image Stabilizer. The fluorite and Super UD-glass elements largely eliminate secondary spectrum. The floating system also ensures high picture quality at all focal lengths. The Image Stabilizer has two modes and it is compatible with Extenders 1.4x II and 2x II.

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Sample Images

Here’s just a taste of what this lens is capable of.

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Specifications

Focal Length	17mm – 40mm
Aperture	Maximum: ƒ4 Minimum: ƒ22
Angle of View	57° – 104°
Lens Construction	12 elements in 9 groups
Diaphragm Blades	7
Minimum Focusing Distance	28cm (11.024")
Features
Filter Size	77mm
Autofocus Type	Rear focusing system with USM
Dimensions
Dimensions (Length by Width)	97mm x 84mm (3.82" x 3.31")
Weight	500g (1.1 lb)

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