Canon CN20x50 Series Manual de instrucciones - Página 23
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5 OPERATION
5-3-2. Manual Iris Operation
Iris Ring
Instant Auto-Iris Switch
This adjustment can be performed on the information display. Refer to the "Information Display Manual".
5-4. EXTENDER OPERATION
The lens is equipped with a built-in 1.5x extender. The focal length of the lens can be extended to 1.5
times by operating the extender. Note, however, that using the extender lowers the T number by an
amount equivalent to the change in focal length, depending on the iris compensation setting.
Extender
Switching
Lever
Slide the iris operation mode change-over switch to the "M"
position. The iris operation is performed by turning the iris ring on
Close
the lens body.
Open
When the instant auto-iris switch is pressed during manual iris
operation, the iris changes to automatic operation mode while the
switch is held down.
* The automatic iris operation may not be performed depending on
the types of cameras.
Operation
The extender is operated by moving the extender switching
lever at the rear of the lens. When the extender switching lever
is on the 1.5x index side, the state of the lens is equivalent to
having a 1.5x extender mounted.
Note that moving the extender switching lever to the 1x index
side removes the 1.5x extender and returns to lens to the
master lens state.
NOTE
The iris operation mode change-over switch must be set to
the "M" position before performing manual iris operations.
The lens may be damaged if manual iris operations are
forcibly performed with the knob at the "A" position.
E16