Nikon D780 DSLR Camera (Body Only) - Manual (Page 228)

182 Shooting Settings
A Frame Advance Rate
The figures for frame advance rate apply in mode S or M at shutter speeds
of 1 /
250
s or faster with AF-C selected for autofocus mode and other
settings at default values. Frame advance rates may slow:
• at slow shutter speeds,
• when [ On ] is selected for [ ISO sensitivity settings ] > [ Auto ISO
sensitivity control ] in the photo shooting menu and ISO sensitivity is
altered automatically by the camera,
• when ISO sensitivity is set to a value of from Hi 0.3 to Hi 2,
• if flicker is detected with [ Enable ] selected for [ Flicker reduction ] >
[ Flicker reduction setting ] in the photo shooting menu,
• at extremely small apertures (high f-numbers),
• when vibration reduction (available with VR lenses) is on,
• when the battery is low,
• with certain lenses, or
• if a non-CPU lens is attached with [ Aperture ring ] selected for Custom
Setting f5 [ Customize command dials ] > [ Aperture setting ].