Using the 580EX II Multi Strobe function an example how to set up
To do this you must run in full Manual (M) mode.
This sample picture was 1/2 Second and F5.6
When using the Multi flash mode, you must have the shutter open for the duration of the series of flashes.
You need your environment VERY dark, and a dark a background as possible.. This shot was quite marginal in that respect.
How to set this up.
On an Canon XTi camera, go to full Manual mode. Set shutter to 1/2 Sec or longer. You will need to experiment with the F Stop. Focus must be in manual mode since it is dark. Camera Must be on a tri-pod to keep it still for the long shutter time.
Turn on 580EX II Flash
Press Mode twice until the screen says Multi
Press Zoom on the flash, and adjust the Flash zoom to best match your lens. Use the sheel to adjust.
Press the button in the middle of the wheel. You will see the Power / Number / Frequency start to flash. Start with setting it to like 8HZ to get 8 flashes per second. This is adjusted with the wheel.
Press the button in the wheel a second time, and adjust the number of flashes you want to occur. With 1/2 Second you have time for 4 flashes. Use the wheel to again adjust this.
Press the button in the sheel a third time. Adjust the wheel to again set the power. The higher the power, the less flashes you may have in a row. Start with 1/32 to 1/8 power.
After that it is trial and error to get what you want.
It is a fun effect to work to produce
Posted at 12:10PM, 19 May 2008 PDT ( permalink )
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