Sigma has posted a firmware update of SIGMA Optimization Pro, the dedicated software for the SIGMA USB DOCK, that enables the D5300 to be fully functional with the following lenses:   

  •  35mm F1.4 DG HSM A012 NIKON
  •  17-70mm F2.8-4 DC MACRO OS HSM C013 NIKON
  •  30mm F1.4 DC HSM A013 NIKON
  •  18-35mm F1.8 DC HSM A013 NIKON
  •  120-300mm F2.8 DG OS HSM S013 NIKON

A Sigma advisory on November 19 said Nikon mount lenses with built-in focus motors may not autofocus correctly in Live View mode, and Optical Stabilization (OS) may not work correctly. This firmware update should fix those issues.