Sigma USB Dock Mount:Nikon F Mount In-camera charging over USB is

In-camera charging over USB is supported for easier on-the-go charging

The body design is reminiscent of Sony's other Alpha E-mount cameras and features an intuitive control layout along with the functional 3

for increased post-production flexibility

An adjustable security strap that connects to D-rings anchors the bag in place on your back to keep it from sliding while riding a bicycle

Autofocus and Vibration Reduction

Sigma USB Dock Mount:Nikon F Mount In-camera charging over USB isThe 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 featuring a Canon EF lens mount. Sigma Optimization Pro Once a Sigma Art, Contemporary, or Sports line lens is connected, you can use the Sigma Optimization Pro software to