Gossen Digipro F - Manual (Page 4)

GOSSEN Foto- und Lichtmesstechnik GmbH 4
3.2 Measuring functions – Ambient light measurement
Select the required ambient light function with the corresponding function buttons.
• Shutter priority in function t: a reading is taken for the corresponding aperture
(see Section 3.2.3 Shutter priority mode – Ambient light measurement, page 4)
• Contrast measurement in function t: (see Section 3.2.4 Contrast measurement, page 4)
• Aperture priority in function f: a reading is taken for the corresponding shutter speed
(see Section 3.2.5 Aperture priority mode, page 5)
• Exposure value measurement in function EV: preselect the shutter speed and the
aperture is given as an analog value (see Section 3.2.6 Exposure value EV, page 5)
• CINE (frames per second) in function t:
(see Section 3.2.7 CINE scale (frames per second), page 5)
.
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.
Synch range from 1 s to 1/1000 s (including 1/90 s)
• Press the measuring button M.
Digipro F 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 Digipro F will calculate up to a maximum of 10 flash sequences.
3.2.3 Shutter priority mode – Ambient light measurement
• Select with the function buttons (the last stored value appears
on the display)
• Adjust the desired shutter speed with the value buttons
• Measure by pressing the meas. button M
The measured aperture appears in the left-hand digital display
(accuracy: 1/10 stops), also as a rounded mark in the analog aperture scale
• Select alternative aperture/shutter speed combinations with the value buttons.
3.2.4 Contrast measurement
• Select t with the function buttons
• Keep the measuring button M pressed
while aiming the meter at various areas of the subject. The analog
aperture scale displays the f-stop series between the two extreme
values and with the actual measured value flashing. The first
measured f-stop is displayed in the left-hand side of the display. It remains displayed as a reference value
(e.g. of a grey card)).
After the measuring button is released, the entire measured contrast range is displayed on the analog aperture
scale, and the last measured value will cease to flash.