The 16-35mm f/2.8 ZA SSM Vario-Sonnar T* Lens from Sony is
a professional-grade, bright zoom lens specifically designed for the
Sony Alpha SLR series (also compatible with Minolta Maxxum series) DSLR
cameras. Carl Zeiss' optical design and anti-flare T* (T-Star) coatings
used for this lens help to reduce flare and to increase contrast, in
addition to the aspherical, extra-low dispersion, and super extra-low
dispersion glass elements.
When used with a digital SLR camera with an APS-C sized sensor, the
equivalent 35mm focal length for this lens becomes 24-52.5mm. With its
wide angle zoom range and its constant aperture of f/2.8, in conjunction
with the Super SteadyShot image stabilization system of the Sony Alpha
DSLR camera system, this lens will provide excellent results even when
hand-holding the camera with available light.