Canon telephoto zoom lens is compatible with full-frame
EOS DSLRs, as well as APS-C sized sensors where it will provide a
35mm-equivalent focal length of 160-640mm. One fluorite element and one
Super UD element have been incorporated into the lens construction, and
both help to reduce aberrations and distortions throughout the zoom
range in order to deliver notable clarity, image sharpness, and faithful
color reproduction. An Air Sphere Coating has also been applied to lens
elements in order to reduce lens flare and ghosting for more
contrast-rich imagery. Benefiting the optical components of the lens, a
four-stop effective Optical Image Stabilizer helps to minimize the
appearance of camera shake and can be dedicated to different styles of
shooting. |
Three dedicated image stabilization modes are
available-Standard, Panning, and During Exposure Only-and can be
selectively employed to suit a variety of types of shooting. The
rotation-type zoom ring offers precise adjustment between zoom
positions, especially when shooting handheld, and a zoom torque
adjustment ring enables easy setting of the zoom tension for
personalized control. |
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An Ultrasonic Motor (USM), along with an internal
focusing system, high-speed CPU, and optimized AF algorithms, are
employed to deliver fast, precise, and near-silent autofocus
performance. Positioned as a versatile option for sports and wildlife
photographers, this lens' list of attributes make it a viable telephoto
zoom for a variety of shooting applications.
Housed within a weather-resistant barrel, this lens also features
fluorine coatings on the front and rear elements for protection against
fingerprints and smudges from affecting image quality. Zoom control is
complemented by a dedicated tension ring for adjusting zoom torque.
Additionally, other refined design elements include a tripod collar that
can be attached or detached with the lens mounted to the camera and an
included lens hood that permits easy control over specialty filters with
the hood in place. |