This large aperture zoom lens has improved optical performance and
retains close-up ability with a minimum focusing distance of 100cm
(39.4") and maximum magnification ratio of 1:3.5.
SLD (Special Low
Dispersion) and ELD (Extraordinary Low Dispersion) glass elements
provide excellent correction for all types of aberrations. The super
multi-layer coating reduces flare and ghosting. High image quality is
assured throughout the entire zoom range.
This lens incorporates HSM
(Hyper Sonic Motor), which ensures a quiet and high-speed AF as well as
full-time manual focusing capability. It is also possible to attach
the optional APO Tele Converters.
Improved optical performance
It has improved optical performance and retains close-up ability with a
minimum focusing distance of 100cm (39.4”) and maximum magnification
ratio of 1:3.5. This lens is suitable for taking all types of subjects
such as portraits, landscapes, and close-up pictures.
Reduced Ghosting and Flare
The super multi-layer coating reduces flare and ghosting. It produces
superior optical performance throughout the entire focusing distance.
SLD and ELD glass
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.
HSM (Hyper Sonic Motor)
This lens incorporates HSM (Hyper Sonic Motor), which ensures a quiet
and high-speed AF as well as full-time manual focus override by
rotation of the focus ring.
Inner focusing and inner zooming system
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.
The inner focusing system
also eliminates front lens rotation, making the lens particularly
suitable for using the supplied petal-type lens hood and circular
polarizing filters. A removable tripod collar (TS-21) is included as a
standard component.
APO Tele-Converter (Optional)
The addition of the optical 1.4x EX DG APO or 2x EX DG APO Tele
Converters* produce a 98-280mm F4 AF telephoto zoom lens or a 140-400mm
F5.6 AF telephoto zoom lens respectively.
Specially designed to
provide optimum performance with the master lenses.
* Pentax mount can be used in manual mode only.
