Nikon D780 DSLR Camera (Body Only) - Manual (Page 447)

401 Connecting to Computers and TVs
D HDMI Output
HDMI output is not available when movies are recorded at frame sizes of
1920 × 1080 120p, 1920 × 1080 100p, or 1920 × 1080 slow-motion or
when the camera is connected to a device running Camera Control Pro 2.
D [10 Bit] Selected for [Output Data Depth]
[ 10 bit ] can be used only with compatible recorders. No photos can be
taken; during movie recording, the following additional restrictions apply
when 3840 × 2160 is selected for frame size:
• Movies are not recorded to memory cards inserted in the camera.
• Icons and characters in the monitor will display at low resolution.
• The angle of view is about 90%.
D HDR (HLG) Output
Optimal color reproduction can only be achieved if your equipment,
including your storage device, computer, monitor, operating system, and
software, support HDR (HLG). If a signal is received from the connected
device indicating that it supports HDR (HLG), the camera will respond
with a “gamma: HLG” identifier.