Gossen DIGISKY - Handbuch (Seite 13)

GOSSEN Foto- und Lichtmesstechnik GmbH 13
5 How to Use the DIGISKY
5.1
Incident Light and Reflected Light Measurement
The DIGISKY has been designed for highly motivated amateurs, as well as for
professional use.
The retractable diffuser head is laid o
ut as an “optical
control centre ”, where the following measuring modes
can be selected:
Incident light measurement, diffuser up:
spherical measuring characteristic
Reflected light measurement with
20° measuring angle
Incident light measurement, diffuser down:
flat measuring characteristic
In practice the meter can be set-up for all metering methods as shown.
5.1.1 Incident Light Measurement - Spherical Diffuser
Set the diffuser ring surrounding the retractable diffuser
head to “diffuser up” for this measurement. The
corresponding icon appears at the display.
5.1.2 Incident Light Measurement
– Flat Diffuser
Set the diffuser ring surrounding the retractable diffuser
head to “diffuser down” for this measurement. The
corresponding icon appears in the display.
The lowered diffuser with flat measuring characteristic
is suitable for reproductions, flash contrast,
measurements for lighting technology and for movie
applications.
i
The incident light reading delivers results with the highest precision. The DIGISKY
measures incident light falling on the subject from the camera / main light with its
spherical diffuser when using this metering method. As a result, reproduction with the
correct tonal values, true to the subject is assured. This is particularly important for
subjects that are intrinsically bright or dark. Also, in difficult recording situations
– such
as capturing high-contrast subjects - this metering method is considerably more reliable,
delivering correctly exposed, professional quality exposures.
i For reproductions, flash contrast, measurements for lighting technology and for movie
/video applications