Sigma USB Dock - Nikon Fit Other Mount Adapters are overlaid on viewfinder and

are overlaid on viewfinder and viewscreen images

with ultra-sharp results across the entire frame even at F1

True-to-life image quality

high-resolution images with strong contrast and accurate colour reproduction

Featuring a brass bayonet mount that contributes to the overall strength and durability of the lens

Sigma USB Dock - Nikon Fit Other Mount Adapters are overlaid on viewfinder andThe Sigma USB Dock allows you to connect your Nikon fit Sigma lenses to a computer in order to fine tune and adjust parameters on their lens to suit their own preference. Using Sigma's Optimisation Pro software (included) you can update the firmware and configure the autofocus speed, optical stabilisation and also modifty the minimum and maximum focusing distance.