After new firmware for the Nikon D810, Nikon has launched new firmware versions for two other top DSLRs of this company - Nikon D750, version 1.10, and Nikon D4S, version 1.30.
The firmware updates for these two full-frame Nikon DSLR cameras will primarily bring a new external recording control option for use with external recorders using Atomos Open Protocol (Atomos SHOGUN, NINJA2, or NINJA BLADE). When either DSLR is connected via HDMI to the said recorders and the option has been activated, recording can be started and/or stopped via the external device.
Other improvements provided by the new firmware versions have to do with fixing some bugs in the movie live view (LV) mode with both of these FX models, such as the impossibility of the shutter to be released in rare cases when the user would attempt to take pictures in the movie LV, or about 4 seconds of static on audio recorded with external HDMI recorders during the movie live view. As for the Nikon D750, the brightness of the LV photography display has also been corrected, as well as the differences in information regarding the shutter speed, aperture, and ISO sensitivity (during the movie live view, some values were displayed in the motor, and some other in the final movie file). With the D750, but the Nikon D4S as well, the exposure compensation used to fail to produce the desired results if a negative value was selected when NEF (RAW) images were processed using the NEF (RAW) processing option in the RETOUCH MENU - that has been sorted out now.
What is also important to point out as far as the D750 is concerned is that the new firmware provides optimal vibration reduction (VR) with vibration reduction lenses.
For a more detailed report on the improvements and corrections introduced by the firmware version 1.10 for the Nikon D750 and the 1.30 for the Nikon D4S, as well as for their download, visit Nikon's official website - Nikon D750; Nikon D4S.