Dedicated Flash Photography - Canon EOS 1 Instructions Manual

R. Dedicated Flash Photography
58
(1) Use the Canon Speedlites 430EZ and
300EZ for fill-in flash in outdoor settings as
well as for normal flash when shooting at
night or in a dimly-lit room. These units fea-
ture a built-in AF auxiliary light function for
dark situations.
-When the AF mode is set to AI servo, the
AF auxiliary light does not emit.