Sigma USB Dock UD-01NA for Nikon Mount Action Camera Accessories Key Features: RBG mode with

Key Features: RBG mode with 360 colors

so you can always have it on-hand

A whole new ultra-telephoto experience

Dust and drip resistant

Easy to handle

Sigma USB Dock UD-01NA for Nikon Mount Action Camera Accessories Key Features: RBG mode withFeatures: Customize the Autofocus, OS, Focus Compatible with Global Vision Lenses Sigma Optimization Pro software in order to connect a photographers lens to their personal computer to update firmware and other parameters such as focus, and for the Sports category Compatible Lenses 35mm F1. 4 DG HSM, 17 70mm F2. 8 4 DC MACRO OS HSM 17 70mm F2. 8 4 DC MACRO HSM, and 120 300mm F2. 8 DG OS HSM The adjustment is processed with special software (SIGMA