Sigma released a firmware update for their 150-600mm f/5-6.3 DG OS HSM lens to fix overexposure issues with Nikon D500 cameras: Lens firmware Update for SIGMA 150-600mm F5-6.3 DG OS HSM |Sports / Contemporary in Nikon mount We would like to announce the availability of a new firmware update for the SIGMA 150-600mm F5-6.3 DG … Continue reading Sigma 150-600mm lens firmware updates for Nikon D500 cameras released