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DXC- |
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D30WS/P(E)/V1 | Adjusting the Lens |
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| Flange Focal Length Adjustment |
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| It is necessary to adjust the flange focal length (the | • When a lens is fitted for the first time |
| distance from the lens flange to the plane of the image | • After changing lenses |
| along the optical axis) in the following cases. | • When during zoom operations the focus does not |
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| match properly from telephoto to wide angle |
4,11 | 2 | 1 | 3 |
Iris Adjustments
Iris ring
9
About 3 m (10 feet)
Flange focal length adjustment test chart
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| M |
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| A |
RET | W | T | Instant automatic |
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| iris button |
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| ZEBRA switch |
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| Iris selector |
M
A
RET | W T |
A.IRIS MODE switch |
8 | 6 | 7 | 5 |
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| S ZOOM |
There are three ways of adjusting the iris: automatically, manually, and with the instant automatic iris adjustment function.
To make the image clearer when shooting a subject lit by a spotlight
In the automatic iris adjustment mode, set the A.IRIS
M |
Chapter 5 | 1 | Set the iris selector to the M position. | 7 | Turn the focusing ring so that the test chart is in | |
Adjustments and | |||||
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| focus. | ||
Turn the iris ring to f/1.8 (fully open). | 8 | Move the manual zoom control to the wide angle | |||
3 Place the supplied flange focal length adjustment | |||||
| position. | ||||
Settings |
| test chart at a range of about 3 meters (10 feet), and | 9 |
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| adjust the lighting so that an appropriate video | Turn the Ff adjustment ring so that the test chart is | |||
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| output level is obtained with the iris at f/1.8. |
| in focus. Do not move the focusing ring. | |
| 4 | Loosen the screw of the Ff adjustment ring. | 10Repeat steps 6 to 9 until the image stays in focus | ||
| 5 |
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| from telephoto to wide angle. | |
| Set the ZOOM selector to the M position. | 11After adjustment, tighten the screw of the Ff | |||
| 6 | Move the manual zoom control to the telephoto | |||
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| adjustment ring. |
Iris adjustment
Adjustment method
Automatic adjustment mode
The iris is adjusted automatically to adapt to changes in the brightness of the subject. This is the mode for normal shooting.
Manual adjustment mode
Use this mode in the following cases:
•For special effects
•When filming a person with a very bright sky background
•When shooting a subject with extreme contrast
The zebra pattern can be used as a guideline for iris adjustment.
Instant automatic adjustment function
While in manual adjustment mode, this function makes a temporary automatic adjustment.
Operation
Set the iris selector to the A position.
Set the iris selector to the M position and turn the iris ring as required.
With the iris selector in the M position, hold down the instant automatic iris button for as long as necessary.
MODE switch to SPOT L, turning the indicator on.
Using the zebra pattern in manual adjustment mode
To use the zebra pattern as a guideline for iris adjustment in manual adjustment mode, set the ZEBRA switch to the ON position.
Select the zebra pattern to be displayed in advenced menu page 4 (see page 58).
•When the subject is a person
Adjust the iris manually so that the zebra pattern appears on the highlights of the subject’s face.
•For other subjects
Adjust the iris manually so that the zebra pattern appears on the most important parts of the subject.
Chapter 5 Adjustments and Settings
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80 | Chapter 5 Adjustments and Settings |
To make the image lighter when shooting against the light
In the automatic iris adjustment mode, set the A.IRIS
MODE switch to BACK L, turning the indicator on.
Chapter 5 Adjustments and Settings | 81 |