Nikon D7100 Camera's Firmware Update: D7100 “C” Firmware Version 1.03 (Sept.15, 2015) is Available: Improvements Include Reduced Noise in Movies – Photoxels
Nikon issues firmware update for 10-year-old D7100 | Popular Photography
Nikon D850, D7500 and D5600 Firmware Updates Released - Guid
Several Nikon DSLR Cameras Receive Support for Distortion Control Data L:2.000