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Canon EF 17-40mm f/4L USM

Code: CAN/EF17-40L
$1,150.00
About half the price of the 16-35 f/2.8 lens, this L-series lens has an entirely new optical design with three Aspherical elements and a Super UD-glass element.

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About half the price of the 16-35 f/2.8 lens, this L-series lens has an entirely new optical design with three Aspherical elements and a Super UD-glass element.

The combination provides superb contrast and sharpness, even at the widest settings. It’s ideal for both film and digital SLRs, and features the same weatherresistant design, rear gel filter holder, and high-speed Ultrasonic Motor as the EF 16-35mm lens.

Ultra Wide Lens for Analogue EOS SLR Cameras

Ultra wide angle Canon EF zoom lens meant for professional and high amateur SLR EOS camera users.

Standard Zoom Lens for Digital EOS SLR Cameras

This can give an angle of view equivalent to that of a 28-70mm lens.

Superior Optical Performance

Super Spectra Coating on the elements ensures colour balance, minimises ghosting & flare to provide image quality.

Extensive Set of High-End Features

The AF works silently and quickly thanks to a fast central processing unit.

Specifications

Focal Length & Max. Aperture

17-40mm 1:4

Filter Diameter

77mm

Magnification with Extension Tube EF12

0.83x – 0.32x

Magnification with Extension Tube EF25

1.02x – 0.70x

Diagonal Angle of View

104° - 57° (43.2mm)

Horizontal Angle of View

93° - 49° (36mm)

Lens construction

12 elements in 9 groups

Minimum aperture

f/22

No. of aperture blades

7 (circular aperture)

Closest focusing distance (m)

0.28m

Focus drive

Ultrasonic

Dimensions

83.5mm dia. x 96.8mm

Weight

475g

*All data based on Canon's Standard Test Method

*Subject to change without notice