Photokina: New Lenses

Quite a few new lens announcements from Sigma, Zeiss/co: With a bang, Carl Zeiss is introducing a new family of autofocus lenses for mirrorless system cameras at photokina 2012. Sigma Announces Three New Lenses: 35 f/1.4, 17-70 f/2.8-4.0 OS & 120-300 f/2.8 OS.