Sigma News: APO MACRO 180mm F2.8 launched

Sigma have launched a new telephoto lens for macro photographers, the Sigma APO Macro 180mm F2.8 EX DG OS HSM.

Key features are:

• Magnification ratio of 1:1
• Large maximum aperture of F2.8
• Rounded 9 blade diaphragm
• OS (Optical Stabiliser) system, equivalent to four stops
• Focusing distance of 47cm/18.5in for 1:1 magnification (helpfully long for insects)

More details here.