Sigma has made available firmware v1.05 for its SD14 DSLR. The big news with this latest release is the addition of ISO 50 to the camera's extended mode. This comes with the warning of reduced 'headroom' - read dynamic range - and suggestions on how to cope with this side-effect. The update also implements fixes aimed at improving stability of the camera and is available now from Sigma's site, link after the jump.