Sony DXC-390P Instructions For Use Manual Download Page 18

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EXPOSURE menu

To set the speed, display OFF by pressing
the

and

buttons simultaneously, then

select the desired value by pressing the

button. Each press changes the speed in the
order as shown above.
When using the camera in a 60 Hz lighting
area, the FL setting offers flickerless images
even under fluorescent light.

VARIABLE

Use for fine adjustment of the video output
level in long exposure mode (low-speed
mode) or in clear scan mode (high-speed
mode).

Long exposure mode

You can set the SPEED value in units of 1
frame.
For example, if you set to 50 frames (about
1.7 seconds), the video signal produced
during this set time is output in the form of
one complete frame at intervals of about 1.7
seconds. These pictures, which contain 50
frames of video information, are much
brighter than normal one-frame images. This
mode is useful for shooting a poorly
illuminated object in a dark place.

To set the shutter speed
1

Display OFF by pressing the

and

buttons simultaneously.

Select the SPEED value by pressing the

button. Each time you press the button, the
value changes in units of 1 frame.

To convert the value into the shutter
speed

Example: When the value is set to 5 frames
5 × 1/25 = 0.2000 seconds

• Do not use AGC, CCD-IRIS, ATW,

DCC+ and DYNALATITUDE functions
in long exposure mode.

• When you set the shutter speed to 1 second

or higher, set the gain level to 0 dB.

Clear scan mode

You can set the shutter speed in units of 1H
(horizontal scanning time: 64.00 µs.
Select SPEED, then select the value from
1/625H to 312/625H. This mode can be used
for shooting computer displays with reduced

horizontal bands appearing across the
display screen.

To set the shutter speed
1

Display OFF by pressing the

and

buttons simultaneously.

Select the SPEED value by pressing the

button while observing the noise on the
monitor screen so that you can obtain the
image with minimum noise. Each time
you press the button, the value changes in
units of 1H.

To convert the value into the shutter
speed

Example: When the value is set to 250H
250 × 64.00 µs (1H) + 35.0 µs (constant)
= 16035.0 µs = Approx. 0.016 seconds

CCD-IRIS

Automatically adjusts the luminance level
for optimum output level. When incoming
light is excessive, this function
automatically adjusts the shutter speed to cut
exposure equivalent to up to 10 aperture
stops.
For example, this function is useful for
microscope applications. When shooting
with a microscope not equipped with the
auto-iris lens, the luminance level that is just
right for the human eye is often too bright for
the video camera.
When CCD-IRIS is selected, the electronic
shutter automatically decreases excessive
incident light to an appropriate level for the
video camera. This function is also useful
for cutting out excessive incident light that is
not cut out by the auto-iris lens in scenes
containing very bright patches (such as
snow, or sea water reflecting sunlight).
You can select the highest limit value of the
variable range of the shutter speed. Select
LIMIT, then set the speed to 1/250, 1/500,
1/1000, 1/2000, 1/4000, 1/10000,
1/20000,1/40000 or 1/100000.