Gossen DIGIPRO F2 - Handbuch (Seite 48)

20 GOSSEN Foto- und Lichtmesstechnik GmbH
3.4 Setting and measuring correction values
(see Section 3.4.4 Important remarks concerning correction values)
3.4.1 Setting correction values

Select COR with the function buttons (the last valid correction
value appears in the display)

Enter or change the correction value with the value buttons
The extension factor is shown in the right-hand digital display,
and the correction value in stops in the left-hand section.
Enter in 1/10th stops (small figure) within a range of ±7.9 exposure
value stops.
A figure preceded by „–“ indicates an exposure extending correction.
Example:
–3.1 stops equal factor 8.6.
In the event of an exposure shortening correction, only the left-hand display appears as an exposure
value difference in stops.
3.4.2 Measuring correction values
Correction values can also be directly measured. An evenly illuminated
surface and constant light level are required. Measure in the reflected
mode.

Press measuring button M and get a reference reading:
displayed as rF--.