A high performance, affordable telephoto zoom with advanced
three-stop Image Stabilizer (IS) technology makes the EF 70-300mm f/4-5.6 IS
USM an ideal telephoto zoom for shooting in dim light and at slow shutter
speeds without incurring camera shake.
Benefits
Powerful magnification, yet affordable.
Three-stop Image Stabilizer.
UD lens element and Super Spectra coatings.
Circular aperture provides pleasing background blur.
Fast, quiet autofocus.
Detailed Features.
Affordable high magnification
The powerful, yet reasonably priced, EF 70-300mm f/4-5.6 IS USM will
appeal to nature and sports photographers looking to achieve sharper images
when shooting handheld. When fitted to an EOS camera containing an APS-C sized
sensor, the lens gives an angle of view roughly equivalent to a 112-480mm lens
on a full-frame DSLR.
Image Stabilizer
The EF 70-300mm f/5-5.6 IS USM features a three-stop Image Stabilizer
(IS), making this an ideal lens for handheld work. Shutter speeds up to three
stops slower than would be otherwise possible can be used with no perceptible
increase in image blur. When panning horizontally, the IS system can be set to
correct only for unwanted vertical shake, and the system switches off when the
camera is mounted on a tripod.
UD lens element
A UD (ultra-low dispersion) glass lens element corrects for chromatic
aberrations and provides high resolution and contrast throughout the zoom
range. Only environmentally friendly lead-free glass is used in the lens
construction.
Super Spectra coating
Super Spectra coatings ensure accurate colour balance and enhance
contrast. They also reduce flare and ghosting – a common problem caused by
light bouncing off a camera's sensor.
Pleasing background blur
A virtually circular aperture diaphragm, which is controlled
electromagnetically, gives out-of-focus regions a softer, more even feel, and
lets in-focus subjects stand out against a blurred background.
Ultrasonic focusing
A ultrasonic motor drives autofocus extremely quickly, and in near
silence. Excellent holding torque ensures the point of focus is reached
accurately, without overshooting.
