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© CALUMET PHOTOGRAPHIC, INC. 2007
7
Self-checking routine
The microcomputer performs a self-checking routine as soon as the
battery has been inserted. Every possible display segment appears
in the display during this routine. The duration of the self-checking
routine is approximately 10 seconds, but it can be interrupted by
pressing any button. The factory programmed basic settings are
automatically displayed as soon as the self-checking routine has been completed.
Basic values
ISO: 100/21 ° f: 5.6 COR: 0/ 1.0 EV: 12 t: 1/125 Flash: f 5.6 1/60
2.2 Incident and reflected light measurement
The features and measuring capabilities provided by the DFM 3 are ideally
suited for the dedicated amateur and the professional photographer.
The swivel head will rotate through 180 degrees. This feature allows the
photographer to read the values measured in the display, while the
measuring head is directed towards the subject or light source.
When you remove the diffuser dome, reflected light and contrast
measurements can easily be taken.
