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Advanced Operations
CCD-TR2300/TR3300 3-856-204-23 (1)
Creating a desired picture without changing the exposure
When the aperture value is F11, the shutter speed is 1/60, and the gain
level is 0 dB, adjust the aperture value manually to F5.6, as an example.
If you change the aperture value from F11 to F5.6 in the above example, the exposure
from aperture control becomes brighter by +2 EV. Adjust the shutter speed and the gain
so that the exposure becomes darker by –2 EV to not change the total exposure.
Example 1: changing only the shutter speed
To reduce the exposure by –2 EV using the shutter speed, you should change the
shutter speed from 1/60 to 1/250 (1). (5 steps increase)
Example 2: setting the shutter speed to 1/500 and changing
the gain level
When the shutter speed is changed from 1/60 to 1/500, the EV from the shutter speed
control changes to –3 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.