This is a large aperture lens that provides impressively natural delineation and beautiful shading, as well as excellent performance for indoor photography taking advantage of the bright maximum aperture of f/1.8. The optical system incorporates aspherical lenses, which not only keep the lens size down but also reduce spherical aberration and deliver sharp picture quality. A flare-cut diaphragm installed behind group 1 blocks unwanted light to ensure highest contrast. Operability is enhanced by inclusion of a ring-type USM for silent, high-speed AF with full-time manual focus and a non-rotating filter mount.
Features
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Wide 75° angle of view on full-frame cameras
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Fast f/1.8 aperture
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USM focus motor with full-time manual focus override
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25cm closest focusing distance
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Aspherical lens element
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58mm filter size
KEY FEATURES
Fast and wide
The lens' large maximum aperture of f/1.8 ensures photographers can use fast shutter speeds in a variety of different lighting conditions, and blur backgrounds by controlling depth of field. An aspherical lens element corrects distortion and ensures the image is sharp across the frame.
When fitted to EOS cameras with APS-C sized sensors, the EF 28mm f/1.8 USM offers a field of view equivalent to a 45mm lens on a full-frame camera, making this an ideal fast-aperture standard lens.
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. Furthermore, full-time manual override is available, making it possible to adjust focus without leaving AF mode.
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.
Integration with E-TTL II flash metering
The EF 28mm f/1.8 USM passes distance information back to a compatible EOS camera's E-TTL II flash system to ensure optimal flash metering.
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Technical Specification |
Canon EF 28mm f/1.8 USM |
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Angle of view (horzntl, vertl, diagnl) |
65°, 46°, 75° |
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Lens construction (elements/groups) |
10/9 |
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No. of diaphragm blades |
7 |
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Minimum aperture |
22 |
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Closest focusing distance (m) |
0.25 |
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Maximum magnification (x) |
0.18 |
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AF actuator |
USM¹ |
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Filter diameter (mm) |
58 |
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Max. diameter x length (mm) |
73.6 x 55.6 |
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Weight (g) |
310 |
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