SIGMA SD15 - Manual (Page 81)

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The SD15 is equipped with a PC Synchro Terminal, which accepts a cable
connection fro external/studio flash units.
CAUTION!!
•
S-TTL auto flash does not work, if PC Synchro Terminal is used.
•
Set the camera’s exposure mode to M and set to flash synchronized speed
Sync (1/180) or a shutter speed of 1/160 or lower. See the instruction manual
of the particular flash used for additional information.
•
The SD15’s PC Synchro Terminal is compatible with plugs that have a
positive (+) polarity on the central pin and a negative (-) polarity on the shield.
If the plug has reverse polarity, use a commercially-available polarity
conversion cord.
WARNING!!
•
The PC terminal cannot accept flashes that use a voltage of more than 250V.
Higher voltage will damage the camera. Please ask the manufacturer of the
flash about the voltage and compatibility with the PC terminal.
EXTENDED MODE SETTING
It is possible to extend the ISO Sensitivity range and the Bulb time by
setting the camera to Extended Mode.
The Extended Mode can be set in the Camera Set-up Menu (P.28) →
[Extended Mode]
ISO Sensitivity Bulb time
Off
(Default)
100, 200, 400, 800, 1600 Up to 30 seconds
On 50, 100, 200, 400, 800, 1600, 3200 Up to 120 seconds
CAUTION!!
•
When using the extended ISO Sensitivity and Buld time, the image quality
may be lowered due to increasing noise.