Sigma USB Dock - Nikon Fit Other Mount Adapters Featuring a brass bayonet mount

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

high-resolution images with strong contrast and accurate colour reproduction

True-to-life image quality

2 turns so the unit is extremely fast to focus

waterproof rear pocket is useful for everyday bits and pieces which need to be kept safe and secure

Sigma USB Dock - Nikon Fit Other Mount Adapters Featuring a brass bayonet mountThe 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.