Sony Handycam CCD-TR2300 Service Manual page 29

When you shoot in manual adjustment mode, we recommend you to keep the exposure
fixed to make a clear picture. This section shows you what the exposure is and how to
adjust each item with the exposure fixed.
Understanding the exposure
Exposure is determined by aperture, shutter speed and gain, and is measured in EV
(exposure value) as shown below.
Total EV = EV from aperture control
÷ EV from shutter speed control
+ EV from gain control
The total exposure value can be varied or maintained at a constant level by controlling
the aperture, gain and shutter speed.
Use the following graph to select the setting. One scale corresponds to 0.5 EV.
[a] Vertical axis: Aperture value (F value)
[b] Horizontal axis: Shutter speed (per second)
[cJ Diagonal axis: Gain level (dB)
[a] [cl (dN
(F)
2
1
: Brighter
Creating a desired picture without changing the exposure
When the aperture value is Fll, the shu/;ter 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 Fll 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 (O). (5 steps increase)
Example 2: setting the shutter speed to 11500 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 ((_)). 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.
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