Sony HVL-F42AM - Manual (Page 30)

GB 30
Adjusting bounce angle
Simultaneously using direct light and bounced light from the flash unit produces
uneven lighting. Determine the bounce angle with respect to the distance to the
reflective surface, the distance from the camera to the subject, the focal length of
the lens etc.
When the flash is bounced upwards
Determine the angle in relation to the following table.
Bouncing to Left and Right
Rotating the flash by 90° to bounce light sideways is recommended. If an angle of
less than 90° is used, care should be taken to ensure that direct light from the flash
unit does not illuminate the subject.
Focal length of lens Bounce angle
70 mm minimum 45°
28 - 70 mm 60°
28 mm maximum 75°, 90°
Correct
Incorrect