Canon POWERSHOT SX201S - Manual (Page 100)

100
You can change the timing for the flash and shutter.
Choose [Flash Control] (p. 97).
Make the setting.
● Press the op buttons or turn the  dial
to choose [Shutter Sync.] and press the
qr buttons to choose [1st-curtain] or
[2nd-curtain].
Changing the Flash Timing
What are the 1st-curtain and 2nd-curtain?
With the 1st-curtain, the flash fires
right after the shutter opens. With 2nd-curtain, the flash fires
right before the shutter closes.
CO
PY