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Tips for manual adjustment
Creating a desired picture without changing the exposure
When the aperture value is F11, the shutter speed is 1/50, and the
gain level is 0 dB, adjust the aperture value manually to F4, for
example.
When you change the aperture, shutter speed or gain level by 1 step, the exposure
changes by 1.0 EV for shutter speed and 0.5 EV for aperture and gain.
If you change the aperture value from F11 to F4 in the above example, the exposure
from aperture control becomes brighter by 6 steps (+3 EV). Adjust the shutter speed
and the gain so that the exposure becomes darker by –3 EV to not change the total
exposure.
Example 1: changing only the shutter speed
To reduce the exposure by –3 EV using the shutter speed, you should increase the speed
3 steps. Change the shutter speed from 1/50 to 1/425 (1).
Example 2: setting the shutter speed to 1/1000 and changing the
gain level
When the shutter speed is changed from 1/50 to 1/1000 the EV from the shutter speed
control changes to –4 EV. To maintain total exposure, +1 EV (2 steps) should be added
by increasing the gain level. Change the gain level from 0 dB to +6 dB (2). Note that
when you set the gain level higher, the picture may be distorted.
Notes on manual adjustment
• When recording outdoors, the brightness of a subject may be affected by weather.
• When recording conditions change, we recommend that you reset each item.