Canon 300 TL - Manual (Page 61)

Pointing the flash head towards a wall or ceiling and il­
luminating the subject with light reflected off of that sur­
face is called bounce flash. Because the light is
reflected, a loss of light volume is unavoidable. On the
other hand, there will be no dark shadows and a soft,
less contrasty illumination is possible.
This flash features TTL automatic output control so there
is no need for difficult exposure calculations for bounce
flash photography in the Full Auto or A-TTL modes.
When the A-TTL mode is used for bounce flash
photography, the main flash head outputs 1/20th that of
normal output instead of near-infrared rays for the pre-
flash. If the viewfinder display is not blinking, automatic
bounce flash photography is possible,
• The zoom head swivels 90° upward, 180° to the
left and 90° to the right in any combination. Click
stops are provided for extra convenience. To sw­
ing the flash horizontally, first slide the bounce
latch upwards and then rotate the flash head
left or right.
With bounce flash photography, it is necessary to set the
flash head so that the subject is not illuminated directly
by the flash. If you only tilt the flash up a few degrees, ex­
posure will not be uniform. The easiest way to use
bounce flash is to tilt the flash head up 90° and bounce
the flash off the ceiling.