Gossen DIGIFLASH 2 - Handbuch (Seite 33)

GOSSEN Foto- und Lichtmesstechnik GmbH
9
1.2 Incident light and reflected light
Incident light method
For the incident mode, the diffuser is to be shifted to the left and placed in front of the measuring
aperture. Taking measurements using the incident light mode in particular produces in most cases
perfectly exposed shots. In this mode, the exposure meter measures from the subject towards the
main light source. This guarantees that the tone quality of the picture is equivalent to that of the
subject. This is especially important for very bright or dark subjects. Even under very difficult lighting
conditions, as e.g. with subjects that have a lot of contrast, the incident light mode is a more reliable
way of producing well exposed pictures.
Reflected light method
For the reflected mode, the diffuser must be shifted to the right. Care must be taken, that the light sensor
is entirely free. The measurement is taken from the position of the camera towards the subject. In this
method, only the light reflected from the subject is detected by the meter. Therefore, the measuring
values always depend on the reflection capacity of the subject. As a result of this, bright subjects are
reproduced darker and therefore not properly exposed. Consequently, this mode is conveniently used,
when the subject does not show too high contrasts between bright and dark areas.
1.3 Duration of read-out in display
The exposure meter will always display the last function used. The meter does not automatically switch
off, as the power consumption is extremely low.