8basic functions white balance, Automatic exposure mode – Sony FCB-EX980S User Manual

Page 8

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8

Basic Functions

White Balance

White Balance has the following modes, all of which
can be set using VISCA Commands.

• Auto White Balance

This mode computes the white balance value output
using color information from the entire screen. It
outputs the proper value using the color temperature
radiating from a black subject based on a range of
values from 3000 to 7500K.
This mode is the factory setting.

• ATW

Auto Tracing White balance (2000 to 10000 K)

• Indoor

3200 K Base Mode

• Outdoor

5800 K Base Mode

• One Push WB

The One Push White Balance mode is a fixed white
balance mode that may be automatically readjusted
only at the request of the user (One Push Trigger),
assuming that a white subject, in correct lighting
conditions, and occupying more than 1/2 of the
image, is submitted to the camera.
One Push White Balance data is lost when the power
is turned off. If the power is turned off, reset One
Push White Balance.

• Manual WB

Manual control of R and B gain, 256 steps each

Automatic Exposure Mode

The variety of AE functions, which allow video signal
to output the optimum image for subjects from low
light condition, to high light conditions, it is available.

• Full Auto

Auto Iris and Gain, Fixed Shutter Speed (NTSC: 1/60
sec., PAL: 1/50 sec.)

• Shutter Priority

1)

Variable Shutter Speed, Auto Iris and Gain
(1/1 to 1/10,000 sec., 22 steps, std. shutter: 16 steps,
slow shutter: 6 steps)

1) Flicker can be eliminated by setting shutter to

t1/100s for NTSC models used in countries with a 50 Hz

power supply frequency

t1/120s for PAL models used in countries with a 60 Hz

power supply frequency

• Iris Priority

Variable Iris (F1.6 to Close, 18 steps), Auto Gain and
Shutter speed

• Manual

Variable Shutter, Iris and Gain

• Bright

Variable Iris and Gain (Close to F1.6, 17 steps at
0 dB: F1.6, 15 steps from 0 to 28 dB)

AE – Shutter priority

The shutter speed can be set freely by the user to a
total of 22 steps – 16 high speeds and 6 low speeds.
When the slow shutter is set, the speed can be

1

/

30

s,

1

/

15

s,

1

/

8

s,

1

/

4

s,

1

/

2

s,

1

/

1

s. The picture output is read at a

normal rate from the memory. The memory is updated
at a low rate from the CCD. AF capability is low.
In high speed mode, the shutter speed can be set up to
1/10,000s. The iris and gain are set automatically,
according to the brightness of the subject.

Data

NTSC

PAL

15

10000

10000

14

6000

6000

13

4000

3500

12

3000

2500

11

2000

1750

10

1500

1250

0F

1000

1000

0E

725

600

0D

500

425

0C

350

300

0B

250

215

0A

180

150

09

125

120

08

100

100

07

90

75

06

60

50

05

30

25

04

15

12

03

8

6

02

4

3

01

2

2

00

1

1

AE – Iris priority

The iris can be set freely by the user to 18 steps
between F1.6 and Close.
The gain and shutter speed are set automatically,
according to the brightness of the subject.

Data

Setting value

Data

Setting value

11

F1.6

08

F8

10

F2

07

F9.6

0F

F2.4

06

F11

0E

F2.8

05

F14

0D

F3.4

04

F16

0C

F4

03

F19

0B

F4.8

02

F22

0A

F5.6

01

F28

09

F6.8

00

CLOSE

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