Sigma USB Dock - Canon EF Mount Category_Paper Seamless Continued refinements and new technologies

Continued refinements and new technologies such as Vibration Reduction (VR) II

and the loss of its thousand years of independence to Napoleon Bonaparte in 1797 – as well as the fact that it appears to be sinking slowly into the waters on which it is built – has only added to its mystique

When mounted on a DX-format D-SLR

or a Nikon EN-EL4a when used with the Nikon BL-3 Battery Chamber Cover

especially the range of ILFORD DELTA PROFESSIONAL films

Sigma USB Dock - Canon EF Mount Category_Paper Seamless Continued refinements and new technologiesBy connecting the USB cable to a computer, SIGMA USB DOCK enables photographers to update the lens firmware and adjust parameters such as focus. The adjustment is processed with special software (SIGMA Optimization Pro). The AF speed, focus limiter and OS function are also customizable for Sports lenses.