Sekonic L-758DR - Manual (Page 25)

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1-4 Cinematography
1. Hold down the Mode button and turn the Jog wheel
to select ambient light shutter speed priority mode
.
2. Turn the Jog wheel to select the Cine Speed for the
camera that will be used.
Cine Speed are displayed after 1/8000, 1/200, 1/400 and
the unit is in frames per second (f/s).
[L-758DR/758D]
The following Cine Speeds will be displayed:
2, 3, 4, 6, 8, 12, 16, 18, 24, 25, 30, 32, 36, 40, 48, 50, 60,
64, 72, 96, 120, 128, 150, 200, 240, 256, 300 and 360 f/s.
[L-758CINE]
The following Cine Speeds will be displayed:
1, 2, 3, 4, 6, 8, 10, 12, 14, 16, 18, 20, 24, 25, 30, 32, 36,
40, 48, 50, 60, 64, 72, 75, 90, 96, 100, 120, 125, 128,
150,180, 200, 240, 250, 256, 300, 360, 375, 500, 625,
750 and 1000 f/s.
3. The shutter angle that these speeds are based on, is
180 degrees. For other angles make the following ISO
sensitivity corrections (L-758DR/758D only).
5. Measurement
Shutter angle
Amount of ISO sensitivity
correction
160 degrees -1/3
220 degrees +1/3
* Example of correction value
-1/3: Decrease ISO sensitivity by 1/3 stop, example: ISO 80 -1/3 stop = ISO 64
+1/3: Increase ISO sensitivity by 1/3 stop, example: ISO 80 +1/3 stop = ISO 100