bounce
through-the-lens (TTL)
flag
high-speed sync
use high speed synchronization to reduce
the risk of over-exposing the image's
ambient-litareas
allow the camera and flash to control the light
match the temperature of the image light
to the lighting used on the set
tilt the flash unit toward the ceiling or wall
use either black foam or a small piece of
opaque material to prevent the direct
flash light
make the flash light source bigger
through a bounce card
enlarge
gels