Nikon D4 Firmware Update A1.04, B1.02 Released
Nikon released a firmware update for high-level professional camera Nikon D4. Nikon D4 firmware update A1.04, B1.02 contains one improvement. Nikon support site says :
subject tracking performance in AF-C (continuous-servo autofocus) autofocus mode with framing using the viewfinder has been improved
The new firmware can be downloaded on Nikon support site.