Notes – Canon 300 TL User Manual
Page 49
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Set the control mode set button to either Manual Hi
or Manual Lo and make sure the control mode confir
mation lamp lights up.
6) Focus the subject and read the shooting distance
from the lens’ distance scale,
7) Use the guide number formula on p.24 fo determine
the aperture value and set the aperture on the T90 by
turning its electronic input dial.
Notes
•
Immediately after the pilot lamp lights, the flash is
not yet fully charged. If you want to take a picture at
that time, open the aperture by a half or a whole
f/stop to make up for the weakened flash power.
•
If the calculated aperture value is in between two
values on the aperture ring, set the larger aperture of
the two.
2 6