One month after introducing new lenses at Photokina 2014, Sigma created an update to the firmware of its Sigma USB dock with the aim of making it compatible with the latest lenses Sigma 150-600mm f/5.6-6.3 DG OS HSM Sports and Sigma 18-300mm f/3.5-6.3DC Macro OS HSM 'C'. Even though these lenses can be combined with Sigma, Canon and Nikon cameras, this upgraded version of the USB dock does not include lenses in Nikon mount, while the company Sigma has not stated when this will happen. The initial version of the Sigma USB dock was primarily designed for Sigma and Canon lenses, while Nikon joined in only later, which is expected this time as well.
The Sigma USB dock is produced so as to make it possible for users of new Global Vision Art, Sport and Contemporary lenses to modify and adapt their lenses to their own needs by means of the Sigma Optimization Pro software. The USB dock enables a lens to be connected to the software via a computer, which makes it possible to upgrade the firmware of the lens, as well as other parameters, such as focus, the autofocus speed, the functionality of the optical stabilization, etc. The firmware can be updated via the internet. What is more, users of the new Sigma 50mm f/1.4 DG HSM Art can even toggle on/off full-time manual focus and determine the degree of rotation necessary to activate the mode.
Despite the fact they belong to the class of Global Vision lenses, Sigma DN lenses designed for Micro Four Thirds and Sony E-mount are not compatible with the said USB dock either.