Sigma 70-200mm f/2.8 EX DG OS HSM
Announced at PMA in February 2010. From the press-release: The all-new optical design uses two elements made of Sigma's newly-developed 'FLD' glass (plus three of SLD glass) to reduce aberrations, a 9-blade circular aperture for attractive bokeh, and full-time manual focus override. The Optical Stabilisation system promises up to four stops benefit when hand-holding. Dedicated adapter that extends the length of the hood for APS-C users is supplied as standard.
Rating: Ed: -, User: - (normalized, 0=useless, 50=average, 100=excellent).
Mounts: Canon EF, Nikon F, Pentax K, Sigma SD, Sony A.
Aperture range: f/2.8 to f/22.
Optical zoom: 2.9x.
Close focus distance (CFD): 140 cm / 4.59 ft (from sensor plane).
CFD magnification: 1:8 / 0.13X.
Focus: AF (built-in, ring-type).
Filter diameter: 77 mm.
L x D, W: 87 x 198 mm, TBA g.
Approximate street price: USD 1699 (new, w/o tax).
Sigma is a family owned manufacturer of photographic equipment founded in 1961 in Japan. The company's main business is to manufacture third party lenses. However they also produce third party flash units and, since 2002, their own line of DSLR and compact cameras. Sigma's digital cameras use a special sensor, developed by Foveon, that records full color information for every pixel. In late 2008 Sigma acquired Foveon.