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Overview: The Canon EF 16-35mm f/4L IS USM lens is a
wide angle zoom lens for Canon EOS cameras. This high-performance L-series lens
features an image stabilizer to help prevent blurred images caused by camera
shake. The inner focusing system and USM
(ultrasonic motor) gives you faster, more precise auto focusing.
Focusing Ring: Regardless of whether you're in manual or
auto focus mode, the full-time manual focusing ring always works. This means you can
auto focus on a subject, but manually change the focus, if needed, by turning the focusing
Focus Mode Switch: You can switch between Auto Focus and
Manual Focus using the two-way AF/MF switch on the barrel of the lens.
Image Stabilizer: The built-in Image Stabilizer provides
superb correction for camera shake that it is equivalent to a shutter speed 4
stops faster, even in dim light. The Image Stabilizer begins to work when you
press the shutter button halfway. If you are placing the camera on a tripod, it
is recommended that the Image Stabilizer be turned off.
Circular Aperture: The lens has a 9-blade circular aperture
that delivers beautiful soft-focus backgrounds.
Lens Hood: The EF 16-35mm f/4 IS USM lens includes the EW-82
lens hood to block out unwanted light, and to protect the front of the lens from
rain, snow, and dust. The hood has a bayonet-type mount, and can be
reverse-mounted for storage.
Optional Filters: The lens has a 77mm mounting thread on the
front of lens for attaching screw-on type filters.
- Focal Length/Aperture: 16-35mm f/4
- Lens Construction: 16 elements in 12 groups (including
2 UD-glass elements and 3 aspheric lens elements)
- Maximum Aperture: f/4 (constant)
- Minimum Aperture: f/22
- Angle of View:
- Diagonal: 108°10' - 63°
- Vertical: 74°10' - 38°
- Horizontal: 98° - 54°
- Minimum Focus Distance: 0.92' (0.28m) across the entire
- Diameter: 3.248"
- Length: 4.685" (4.412" with caps)
- Weight: 21.7 ounces