Canon 540EZ User Manual download pdf (Page 39)

• Taking Pictures with Stroboscopic Flash

When taking pictures with stroboscopic flash, it is necessary to set a

shutter speed that will keep the shutter open long enough for all of the

flash bursts to be completed.

"I Set the camera to manual

exposure mode (M) and set

the desired aperture value.

2 Set the shutter speed calculat

ed from the following formula:

Shutter speed =

No. of bursts -i- Firing frequency

For example, if the number of

bursts is set to 10 and the fir

ing frequency is set to 5 (Fiz),

10 5 = 2, so the shutter

speed should be set to a

speed of 2 seconds or longer.

To make sure all of the flash

bursts are properly recorded, it

is a good idea to set a shutter

speed that is slightly longer

than the calculated speed. In

this case, for example, a shut

ter speed of 4 seconds would

be appropriate.

• If the number of bursts is set to

-- (unlimited), the flash will

continuously fire until the shut

ter closes or until the flash

charge is depleted. However,

the maximum number of contin

uous flash bursts Is limited to

the number shown in the chart

on page 21

3 Focus the subject.

• To determine the flash expo

sure, follow the manual flash

procedure on page 18

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Canon 540EZ User Manual Page 39