Tamron has finally announced the 17-35mm F2.8-4 Di OSD lens. The lens is made for Canon and Nikon full frame DSLR cameras, the lens is initially announced for Nikon FX bodies and later Canon version of this lens is also coming. One of the unique feature arrived with this lens is the optimized silent drive motor that promises super fast and silent autofocus is specifically for video purpose.
The lens features moisture resistant construction as well as it is also rain drop proof. So, you can use this lens in rainy season as well as in hot and humid season without any issue.
The lens is super affordable and cost you only $600 only. Pre-order this lens from B&H