Operations Of The Total Level Control System (Tlcs) - Sony HDC-X300 Operation Manual

Operations of the Total Level Control System (TLCS)

1. Auto Gain Control (AGC) operation
Iris value
CLOSE
Gain value
2. Electronic Shutter (AE) operation
Iris value
CLOSE
Shutter speed
AE LIMIT
If the light volume changes such that Auto Iris closes the iris to the AE CHANGE POINT, the iris is
fixed at the CHANGE POINT, and the light volume is adjusted by the Electronic Shutter.
The range of adjustment by the Electronic Shutter is from OFF to the AE LIMIT.
If the light volume exceeds the upper limit of that range, control by Auto Iris is resumed.
3. Auto ND operation
Iris value
CLOSE
If the light volume changes such that
Auto Iris closes the iris to 2 f-stops
from the ND CENTER POINT, the
next upper ND filter (if the current
filter is 1, 2, or 3) is selected
(highest: 4), and the iris is returned
to the CENTER POINT.
• Auto ND has the priority over AGC and AE. (When Auto ND is ON,
AGC operates only when the ND filter is 1. When Auto ND is ON, AE
operates only when the ND filter is 4.)
• Auto ND does not work when the Tally lamp is on.
0 dB
If the light volume changes such that Auto Iris opens the iris to the AGC CHANGE POINT,
the iris is fixed at the CHANGE POINT, and the light volume is adjusted by Auto Gain.
The range of adjustment by Auto Gain is from 0 dB to the AGC LIMIT.
If the light volume exceeds the upper limit of that range, control by Auto Iris is resumed.
AE CHANGE
POINT
–2 f-stops
ND CENTER
AGC CHANGE
POINT
OFF
+2 f-stops
POINT
If the light volume changes such that
Auto Iris opens the iris to 2 f- stops
from the ND CENTER POINT, the
next lower ND filter (if the current
filter is 2, 3, or 4) is selected (lowest:
1), and the iris is returned to the
CENTER POINT.
OPEN
AGC LIMIT
OPEN
OPEN
Specifications
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