SHUTTER

Selects the electronic shutter modes.

OFF

Any electronic shutter mode does not function.

STEP

Select to set the shutter speed to any of 4 steps in long-exposure mode and 11 steps in high-speed mode.

SPEED

Sets the shutter speed.

To set the shutter speed

1Select SPEED by pressing the V or v button.

2Display OFF by pressing the B and b buttons simultaneously.

3Press the B button to set the speed for long-exposure mode, or press the b button to set it for high-speed mode.

4Each press changes the shutter speed.

VARIABLE

Use for fine adjustment of the video output level in units of 1 frame (long exposure mode) or in units of 1H (horizontal scanning time: 63.56 ∝ s for DXC-990, 64.00 ∝ s for DXC-990P) (clear scan mode).

In long exposure mode, for example, if you set to 10 frames (about 0.33 seconds), the video signal produced during this set time is output in the form of one complete frame at intervals of about 0.33 seconds. These pictures, which contain 10 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.

The clear scan mode can be used for shooting computer displays with reduced horizontal bands appearing across the display screen. Adjust the value while observing the noise on the monitor screen so that you can obtain the image with minimum noise.

SPEED

Sets the shutter speed.

To set the shutter speed

1Select SPEED by pressing the V or v button.

2Display OFF by pressing the B and b buttons simultaneously.

3Press the B button to set the speed for long-exposure mode, or press the b button to set it for clear scan mode.

4Each press changes the shutter speed.

To convert the value into the shutter speedLong-exposure mode

Example: When the value is set to 5 frames 5 ⋅ 1/30 = 0.1666 seconds (DXC-990)

5 ⋅ 1/25 = 0.2000 seconds (DXC-990P)

Clear scan mode

Example: When the value is set to 250H DXC-990:

250 ⋅ 63.56 ∝ s (1H) + 34.9 ∝ s (constant)

=15924.9 ∝ s = Approx. 0.016 seconds

DXC-990P:

250 ⋅ 64.00 ∝ s (1H) + 35.0 ∝ s (constant)

=16035.0 ∝ s = Approx. 0.016 seconds.

Note

Do not use AGC, CCD-IRIS, ATW, AWB DCC+ and DYNALATITUDE functions in long exposure mode.

Set the gain level to 0 dB.

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.

LIMIT

Sets the maximum shutter speed to be adjusted to 1/250, 1/500, 1/1000, 1/2000, 1/4000, 1/10000, 1/20000,1/40000 or 1/100000.

IRIS

Selects the iris mode.

GB 12 EXPOSURE Menu