Canon EOS-1D Mark III Digital Camera User Manual


 
108
Flash Photography
With an EZ/E/EG/ML/TL-series Speedlite set in the TTL or A-TTL
autoflash mode, the flash can be fired at full output only.
Set the
camera’s shooting mode to manual or aperture-priority AE and shoot.
When using a Speedlite which has manual flash mode, shoot with
the manual flash mode.
With an EX-series Speedlite set to TTL autoflash with the flash’s
Custom Function, the flash will fire at full output only.
Sync Speed
The camera can synchronize with compact, non-Canon flash units at 1/300
sec. (or 1/250 sec.) or slower shutter speeds. With large studio flash, the
sync speed is 1/60 sec. or slower. Be sure to test the flash unit beforehand
to make sure it synchronizes properly with the camera.
PC Terminal
The camera’s PC terminal is provided
for flash units having a sync cord. The
PC terminal is threaded to prevent
inadvertent disconnection.
The camera’s PC terminal has no
polarity. You can connect any sync
cord regardless of its polarity.
Canon Speedlites other than the EX-series
Using Non-Canon Flash Units
If the camera is used with a flash unit or flash accessory dedicated to
another camera brand, the camera may not operate properly and
malfunction may result.
Also, do not connect to the camera’s PC terminal any flash unit requiring
250 V or more.
Do not attach a high-voltage flash unit on the camera’s hot shoe. It might
not work.
A flash unit attached to the camera’s hot shoe and a flash unit connected to
the PC terminal can both be used at the same time.