Preparation E7; Initialize Operation (Only Models With A Display); Back Focus Adjustment - Canon XJ100x9.3B AF Operation Manual

2 PREPARATION
2-1 Initialize Operation
(Only Models with a Display)
This lens has a built-in encoder for a position sensor of
zoom, iris and focus, and enables high-accuracy control and
advanced for virtual interface. The correct position must be
detected for these functions to operate correctly.
The Auto [ON]/Manual [OFF] setting of initialization can be
set from the information display.
The lens is automatically initialized on power-up.
Auto [ON]
(When in servo mode)
After the power is turned on, position detection is
performed when the lens passes the specific position
Manual [OFF]
(normally near the center) in the course of lens
operation.
For the detailed setting method, refer to the "Display
Operation Manual" at the end of this Operation Manual.
How to detect the position of ZOOM
Initialize
operation
When the power is turned on, the lens automatically
ON (Auto) detects the position. Then, it returns to the position
where it used to be when the power was turned on.
Immediately after the power is turned on, the lens
operates at a temporary position, and the position is
OFF (Manual)
corrected when the lens passes the specific position
and the position is detected.
How to detect the position of FOCUS
Initialize
Demand
operation
Connected
ON (Auto)
Not
connected
Connected
OFF
(Manual)
Not
connected
When position detection is failed:
• The position signal sent from the lens to the camera and
its indication on the information display will be incorrect.
Notes
• Iris is always initialized when powered on regardless of
auto mode or manual mode.
* Default setting at factory: OFF
How to detect the position
How to detect the position
When the power is turned on, the lens
automatically detects the position. Then,
it returns to the position instructed by
command from the demand.
When the power is turned on, the lens
automatically detects the position. Then,
it returns to the position where it used to
be when the power was turned on.
When the power is turned on, the lens
automatically detects the position. Then,
it returns to the position instructed by
command from the demand.
The lens does not automatically
detect the position when the demand
is not connected. When the demand
is connected, the lens automatically
detects the position. Then, it returns to
the position instructed by command from
the demand.
• During initialization, lens operation is disabled. After
initialization is completed, the lens returns to the position
where it used to be before initialization. However, if the
lens is operated in the position servo mode, the lens
moves to the currently controlled position.
• The initialization operation can be enabled/disabled on
the information display. When any initialization operation
is changed, turn off then on the power for the changes to
take effect.
The "Initialize Error!" message appears when the servo
module is not mounted correctly, the lens is forcibly
locked, or some other reason.
In such case, check the lens condition, clear the problem,
and then turn off and on the power again.
Initialize Error! message
2-2 Back Focus Adjustment
If the relationship between the image plane of the zoom
lens and that of the television camera is incorrect, the object
goes out of focus when the lens is zoomed. Follow the steps
below to adjust the back focus of the lens.
1
Select an object at an appropriate distance (XJ27xAF/
XJ27x/XJ23x: 3 to 5 m, XJ100xAF/XJ100x/XJ95x/
XJ86xAF/XJ86x/XJ75x/XJ72x/XJ60x: 10 to 15 m
recommended). Use any object with sharp contrast to
facilitate the adjustment work.
2
Set the lens to 1x [status without using an extender].
3
Set the iris fully open.
4
Set the lens to the telephoto angle.
E7
Initialize
Error!
F.B. Adjusting Knob
F.B. Lock Knob