Sigma USB Dock UD-01E0 for Canon EF-Mount Lenses KITCHEN and the absence of a

and the absence of a mechanical shutter means silent mode and VR Lock make you nearly invisible in any situation

Nikon D40x

This lens is therefore an excellent match for full-frame DSLRs offering 50-megapixel or higher resolution

Shutter Priority Exposure Compensation -2 to +2 EV (1/3 EV Steps) White Balance Auto

Sigma USB Dock UD-01E0 for Canon EF-Mount Lenses KITCHEN and the absence of aSigma USB Dock UD 01E0 for Canon EF Mount Lenses Update Lens Firmware and Adjust Settings For Use with Sigma Global Vision Lenses Compatible with Canon EF Mount Lenses The Sigma USB Dock allows you to connect your Sigma Global Vision lenses to your computer in order to update firmware and adjust focus setting parameters using the Sigma Optimization Pro software. This dock is only compatible with the Sigma Art, Contemporary, and Sports line lenses