KaVo FOCUS User Manual page 27

FOCUS
3.
Use the focal length as long as possible to keep the
absorbed dose as low as reasonably achievable.
4.
Instruct the patient to avoid any movement during the
exposures.
WARNING! Take care not to hit the patient with the unit
during the positioning of the patient.
NOTICE! If the resulting image isn't adequate, ensure that
the patient positioning, the film/sensor positioning and the
exposure values are correct for the wanted exposure.
3 Using the unit
21