Canon
EF 70-300mm f/4-5.6 IS USM
Technical Specification
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Product Overview
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This user-friendly telephoto zoom
lens covers a broad zoom range from 70mm to 300mm. the built-in
image stabilizer (IS) mechanism counteracts the effects of camera
shake by approximately three shutter speed steps. In addition to
“camera shake correction mode 1” suited for shooting stationary
objects, this lens is also provided with “camera shake correction
mode 2” that offers the easy enjoyment of panning filled with a
sense of speed. Only environmentally-friendly lead-free glass is
used in the optical system made up of 15 elements in 10 groups and a
UD lens, which achieves high image quality at all focal lengths, is
employed in the first lens of the third group. Furthermore, the
optimization of lens positioning and coating minimizes the flare and
ghosting that often occur in digital cameras. A zoom ring lock keeps
the lens at its shortest length in the wide position and prevents
the lens barrel from extending and striking any objects when the
lens is being carried attached to a camera with a strap. The use of
micro USM lens drive, a high-speed CPU and an optimized autofocus
algorithm ensures autofocusing that is both quiet and fast. The
image stabilizer mechanism and the optical system utilizing a UD
lens, combined with other features such as the zoom ring lock
function and relatively compact size and weight, make this a highly
advanced and user-friendly lens.
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Technical
Specification |
Focal Length &
Maximum Aperture |
70-300mm f/4-5.6 |
Lens
Construction |
15 elements in
10 groups |
Diagonal Angle
of View |
34° - 8° 15'
(with full-frame camera) |
Focus Adjustment |
Front-focusing
method with helicoid ring drive |
Closest Focusing
Distance |
4.9 ft./1.5m |
Zoom System |
6-group helical
zoom (rotational angle: 84°) |
Filter Size |
58mm |
Max. Diameter x
Length, Weight |
3.0 in. x 5.6
in., 22.2 oz. / 76.5mm x 142.8mm, 630g (lens only) |
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