Tamron 70-180mm f/2.8
Tamron 70-180mm f/2.8 Di III VXD is a unique take on the ubiquitous and popular telephoto zoom. Designed for full-frame Sony E-mount cameras, this lens spans a useful short-telephoto to mid-telephoto range. And is characterized by its f/2.8 maximum aperture to suit working in available light conditions and for controlling depth of field. A sophisticated optical design includes a series of low dispersion. And aspherical elements to correct a variety of aberrations. And a BBAR-G2 coating helps to reduce flare and ghosting for high contrast and color accuracy. Suiting this lens’s use in inclement weather conditions. It also features a moisture-resistant construction along with a fluorine-coated front element to protect against fingerprints and smudging.
Bright constant f/2.8 maximum aperture affords consistent brightness throughout the zoom range and offers improved control over depth of field.
Six low dispersion elements, including both XLD (eXtra Low Dispersion) and LD (Low Dispersion) designs. Greatly reduce color fringing and chromatic aberrations throughout the zoom range in order to realize improved clarity and color accuracy.
Three aspherical elements, including both glass-moulded and hybrid types. Help to reduce spherical aberrations and distortion for high sharpness and accurate rendering throughout the zoom range.
Two VXD (Voice-coil eXtreme-torque Drive) linear motors deliver impressively quiet, quick, and precise focusing performance to suit both stills and video applications.
Two VXD units work in conjunction with a floating elements system to maintain consistent image quality throughout the focusing range.
When working with manual focus at the 70mm focal length position, it is possible to focus as closely as 10.6″ with a 1:2 maximum magnification ratio, however peripheral image quality may be reduced.
Rounded nine-blade diaphragm contributes to a pleasing bokeh quality.
Zoom Lock switch prevents unwanted barrel extension during transportation.