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© CALUMET PHOTOGRAPHIC, INC. 2007
3.2.1 Flash readings
Readings can be taken with or without synchronizing cable. When
used in conjunction with a synchronizing cable the flash is triggered by
pressing the
M
button–the flash is automatically triggered and measured.
•
Select with the function buttons
•
Adjust the desired synchronizing speed with the value buttons.
Sync range from 1 s to 1/1000 s (including 1/90 s)
•
Press the measuring button
M
.
DFM 3 is operable for metering for a period of 45 s (meter
readiness prevails as long as
F
remains visible in the display)
•
Trigger the flash
The measured aperture (total of flash and ambient light) appears
in the left digital display, and as a flashing mark on the analog aperture scale. The aperture for the
share of ambient light is additionally indicated on the aperture scale (in our example f/8).
3.2.2 Multiple flash
Occasionally the light output from a single flash may not be sufficient to
enable you to work at the aperture desired. In that case, simply
push the top value button until the desired f/number appears in the
display. The digital display of the time
t
disappears and the number of
flashes required is indicated (e.g.: F4 = 4 flashes).
The DFM 3 will calculate up to a maximum of 10 flash sequences.
