Tamron has designed this 70-180mm f2.8 Di III VXD zoom lens to be a compact, bright and extremely fast linear motor autofocus lens designed specifically for Sony E-mount full-frame mirrorless cameras. This new VXD (Voice-coil eXtreme-torque Drive) focusing motor is a linear motor whose autofocus mechanism is extremely fast and quiet.
This lens has an optical construction of 19 elements in 14 groups that offer outstanding edge-to-edge performance. In addition, the bokeh effect obtained thanks to its f2.8 aperture, together with a minimum focusing distance of only 0.85m, offers an extremely smooth transition from subject to background. The optical design includes several glass lenses that contribute to a perfect optical performance and its minimum focusing distance is only 0.85m (MOD - Minimum Object Distance) so that new possibilities can be enjoyed due to the considerable versatility it offers.
The Tamron 70-180mm f2.8 Di III VXD offers another important feature and that is that this lens has a moisture resistant construction and a fluorine coating on the front lens which together protect the lens and make it easy to maintain.
This Tamron is compact size and light weight maximize the mobility advantages of mirrorless cameras. This will give you extra efficiency in all your work.
It is moisture resistant and its filter diameter is 67mm like the entire range of this Tamron series. This is a great advantage when using filters, filter holders or any other accessory you put on the lens.