Sony EVI-D70, Техническое руководство

Страница: 9 / 60

9
Basic Functions
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
,
1
/
15
,
1
/
8
, or
1
/
4
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 /
10,000
s. The iris and gain are set automatically,
according to the brightness of the subject.
a) For AE-Manual only.
Note
When the shutter speed 1/1 s or 1/2 s is used, Auto
Focus and White Balance may not function fully.
AE – Iris Priority
The iris can be set freely by the user to 18 steps
between F1.4 and Close.
The gain and shutter speed are set automatically
according to the brightness of the subject.
Data Setting value Data Setting value
11 F1.4 08 F6.8
10 F1.6 07 F8.0
0F F2.0 06 F9.6
0E F2.4 05 F11
0D F2.8 04 F14
0C F3.4 03 F16
0B F4.0 02 F19
0A F4.8 01 F22
09 F5.6 00 CLOSE
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
a)
2 2
00 a) 1 1
AE – Manual
The shutter speed (22 steps), iris (18 steps) and gain
(16 steps) can be set freely by the user.
AE – Bright
The bright control function adjusts both the gain and
iris using an internal algorithm according to a
brightness level freely set by the user. Exposure is
controlled by gain when dark and by iris when bright.
As both gain and iris are fixed, this mode is used when
exposing at a fixed camera sensitivity. When switching
from Full Auto or Shutter Priority Mode to Bright
Mode, the current status will be retained for a short
period of time.
Only when the AE mode is set to “Full Auto” or
“Shutter Priority,” the user can switch it to “Bright.”
MIN
MAX
AGC
CLOSE
OPEN
IRIS
Gain
Dark Bright
IRIS curve
Gain curve
Controlled
by gain Controlled by IRIS
Bright limit which controllable
for this unit
Data Iris Gain Data Iris Gain
1F F1.4 28 dB 0F F2.0 0 dB
1E F1.4 26 dB 0E F2.4 0 dB
1D F1.4 24 dB 0D F2.8 0 dB
1C F1.4 22 dB 0C F3.4 0 dB
1B F1.4 20 dB 0B F4.0 0 dB
1A F1.4 18 dB 0A F4.8 0 dB
19 F1.4 16 dB 09 F5.6 0 dB
18 F1.4 14 dB 08 F6.8 0 dB
17 F1.4 12 dB 07 F8.0 0 dB
16 F1.4 10 dB 06 F9.6 0 dB
15 F1.4 8 dB 05 F11 0 dB
14 F1.4 6 dB 04 F14 0 dB
13 F1.4 4 dB 03 F16 0 dB
12 F1.4 2 dB 02 F19 0 dB
11 F1.4 0 dB 01 F22 0 dB
10 F1.6 0 dB 00 CLOSE 0 dB