Canon EOS 620 User Manual

Page 109

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(1) Use the Canon Speedlites 420EZ and 300EZ

as fill-in flash in outdoor settings as well as for

normal flash when shooting at night or in a dim
ly-lit room. These units feature a built-in AF aux
iliary light function for dark situations, so you

can perform AF flash photography.

Fill-in flash:

This technique utilizes a flash unit as an

auxiliary light to prevent subject underex
posure in backlit situations. Generally, the

exposure level between the main subject il

luminated by the flash and the background
in ambient light must be balanced to avoid

unnatural

effects.

With

the

Canon

Speedlites 420EZ and 300EZ there is no

need to balance this exposure level

because it is automatically controlled.