Large aperture zoom lens with improved optical performance.
This large aperture zoom lens has improved optical performance and retains
close-up ability with a minimum focusing distance of 100cm/39.4in and maximum
magnification ration of 1:3.5. This lens is suitable for taking all type of
subjects such as portraits, landscape, and close-up pictures. Two SLD (Special
Low Dispersion) and three ELD (Extraordinary Low Dispersion) glass elements
provide excellent correction for all types of aberrations. High image quality is
assured throughout the entire zoom range. The super multi-layer coating reduces
flare and ghosting. This lens incorporates HSM (Hyper Sonic Motor), which
ensures a quiet and high-speed AF as well as full-time manual focusing
capability. The lens design incorporates an inner focusing and inner zooming
systems. The overall length of the lens does not change during focusing and
zooming, ensuring convenient handling. A removable tripod collar (TS-21) is
included as a standard component.
When this lens is used with the optional 1.4x EX DG APO or 2x EX DG APO Tele
Converters, it becomes a 98-280mm F4 AF telephoto zoom lens or a 140-400mm F5.6
AF telephoto zoom lens respectively.