Nikon Camera F3AF User Manual
Page 125
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Auto flash control
system
Accessory shoe
Sync terminal
Flash synchronization
Flash ready-light
TTL direct flash control governs
output of Nikon dedicated flash unit
using camera’s SPD sensor;
effective ASA/ISO range from ASA/
ISO 25 to ASA/ISO 400
Special Nikon type located at base
of rewind knob; has hot-shoe
contact, ready-light contact, and
TTL flash output control contact;
accepts Nikon SB-12, SB-16A or
SB-17 shoe-mounting electronic flash
unit or TTL connecting cord from
SB-11 or SB-14 for TTL direct flash
output control using camera’s SPD
metering cell
Threaded type provided for off-
camera or multiple-flash
photography
Speeds of 1/80 sec. (X) or slower
with electronic flash; with Nikon
dedicated flash unit, flash sync
is automatically set to 1/80 sec.
when shutter speed dial is set at A
or 1/125 sec. or above; at slower
speeds, shutter fires at the speed set
Visible in the viewfinder; LED lights
up when Nikon dedicated flash unit
is completely recycled or blinks to
warn of insufficient light output,
improper flash connection, or
improper ASA/ISO setting
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