Tamron 70-300mm f/4-5.6 Di VC USD SP
Rating: Ed: -, User: - (normalized, 0=useless, 50=average, 100=excellent).
Mounts: Canon EF, Nikon F, Sony A.
Aperture range: f/4-5.6 to f/45.
Optical zoom: 4.3x.
Close focus distance (CFD): 140 cm / 4.59 ft (from sensor plane).
CFD magnification: 1:4 / 0.25X.
Focus: AF (built-in, ring-type).
Filter diameter: 62 mm.
L x D, W: 143 x 83 mm, 765 g.
Approximate street price: USD 449 (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.