EF 70-300mm f/4.5-5.6 DO IS USM
A unique design amongst telephoto zoom lenses. The EF 70-300mm f/4.5-5.6 DO IS USM incorporates a Diffractive Optical (DO) element that delivers compact size, low weight and superb image quality
Beneficii
- Three-layer Diffractive Optical (DO) element
- Just 9.99cm in length
- Image Stabilizer
- High speed AF with manual focus override
- Circular diaphragm for pleasing bokeh
- Zoom ring lock
Specificaţii detaliate
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Packed with technology
With its multi-layer Diffractive Optical (DO) element, Image
Stabilization (IS) and Ultra-Sonic Motor (USM) technologies, the EF
70-300mm f/4.5-5.6 DO IS USM is a celebration of precision lens
design.
Diffractive Optical (DO) optics
The EF 70-300mm f/4.5-5.6 DO IS USM incorporates a Diffractive
Optical (DO) element, which reduces the physical size of the lens
while preserving image quality. The DO element combines the
characteristics of fluorite and UD elements into one piece of
glass. The result is high contrast and sharpness as well as tight
control over chromatic aberration.
Image Stabilizer
The EF 70-300mm f/4.5-5.6 DO 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 normal can be used
with no perceptible increase in image blur. Major movement in a
particular direction is automatically interpreted as panning and IS
is turned off in this plane.
Ultrasonic focusing
A ring-type ultrasonic motor drives autofocus extremely quickly,
and in near silence. Excellent holding torque ensures the point of
focus is reached accurately, without overshooting.
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.
Integrated into the EOS system
The AF drive pattern of the len
Specificaţiile produsului
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