Sigma 180mm f/3.5 EX DG APO IF HSM Macro
Check availablity: eBay.
Like most macro lenses, this is lens is very sharp with a nice, flat field.
Focusing isn't blazing fast, but I always use manual focus with it for macro.
Rating: Ed: -, User: - (normalized, 0=useless, 50=average, 100=excellent).
Mounts: Canon EF, Nikon F, Sigma SD, Sony A.
Aperture range: f/3.5 to f/32.
Close focus distance (CFD): 46 cm / 1.51 ft (from sensor plane).
CFD magnification: 1:1 / 1X.
Focus: AF (built-in, ring-type).
Filter diameter: 72 mm.
L x D, W: 182 x 80 mm, 965 g.
Approximate street price: USD 699 (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.