The Sigma USB Dock allows you to connect your Canon 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.
|Condition of Operation||
Core2Duo or faster processor
Mac OS X Ver.10.7 or 10.8 and Intel Core Processor