Tamron 24-70mm f/2.8 Di USD VC
This pro-grade normal zoom for FX uses special high-grade glass in the LD elements, three glass molded aspherical lenses, one hybrid aspherical lens and two XR (Extra Refractive Index) glasses. The diaphragm has 9 rounded blades, for nice bokeh.
Tamron claims moisture-resistant construction helps prevent water from penetrating the lens.
The Sony version does not include VC, and the designation “VC” is not part of the long name. Sony DSLRs has in-body stabilization.
Rating: Ed: -, User: - (normalized, 0=useless, 50=average, 100=excellent).
Mounts: Canon EF, Nikon F, Sony A, T2.
Aperture range: f/2.8 to f/22.
Optical zoom: 2.9x.
Close focus distance (CFD): 38 cm / 1.25 ft (from sensor plane).
CFD magnification: 1:5 / 0.2X.
Focus: AF (built-in, ring-type).
Filter diameter: 82 mm.
L x D, W: 109 x 88 mm, 825 g.
Approximate street price: USD 1299 (new, w/o tax).
Tamron is a Japanese corporation specializing in the manufacture of photographic and industrial optics. The company was founded in 1950 as Taisei Kōgaku Kiki Seisakush. It was renamed Tamron in 1970.
As well as its own-branded designs, it makes many optical units for other companies compact digital cameras, and produces consumer grade lenses for several of the major DSLR manufacturers.