1-44Black Balance Adjustment

Shutter Settings

Correct adjustment of the black balance is important for optimum operation of a video camera. It is necessary when using the camera for the first time or after a significant period out of use, and also when there has been a sudden change in temperature.

The adjustment value is saved in memory, and readjustment is not normally necessary after powering the camera off or simply when lighting conditions change.

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Notes

When using a camera control unit, if the W/B BALANCE switch of the camera control unit is set to MANUAL, it is not possible to carry out black balance adjustment on the camera.

When using a CCU-M5/M5P Camera Control Unit, make sure that the MODE switch of the CCU-M5/ M5P is in the CAM position.

If black balance adjustment cannot be completed automatically

The warning message “AUTO BLACK -NG-” appears in the viewfinder.

Make the necessary corrections, then carry out the process again.

Warning messages for black balance adjustment

Message

Meaning and corrections to be made

AUTO BLACK

The lens iris did not close fully.

-NG-

Check whether the lens cable is

: IRIS

connected properly, and whether there is

NOT CLOSED

a fault in the lens. If a second attempt to

carry out the adjustment fails, consult

TRY AGAIN

your Sony dealer.

 

This section covers the settings for electronic shutter speed, CLS (clear scan ) and EVS function.

The new value for the shutter speed or clear scan frequency and EVS setting remains set until changed, even when the camera is powered off.

Shutter speeds

There are five shutter speeds, from 1/100 s (DXC-D30) or 1/60 s (DXC-D30P) to 1/2000 s. Increasing the shutter speed reduces blurring when shooting a fast-moving subject. It is also possible to reduce flicker when shooting under fluorescent lighting by changing the shutter speed.

CLS (Clear Scan) function

When shooting a computer screen or projected image, horizontal bands may appear in the camera image. This is because the vertical scan frequency of the computer-generated image is different from the vertical scan frequency of the video system. The clear scan function allows you to select a vertical scan frequency to reduce this interference.

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1 Set the SHUTTER switch to the ON position.

The SHUTTER indicator in the viewfinder comes on, and it is now possible to change the shutter speed or clear scan frequency setting and to set the EVS function. (If the EVS is already selected, the SHUTTER indicator will not light.)

Chapter 5 Adjustments and Settings

1 Move the POWER switch to the ON SAVE position, and check that the OUTPUT/DL/DCC+ switch is in one of the CAM positions.

2 Push the WHT/BLK switch in the BLK direction and release.

The lens iris closes, and black balance adjustment is carried out.

During the adjustment the legend “AUTO BLACK -OP-” appears in the viewfinder.

AUTO BLACK

-OP-

AUTO BLACK

The iris opened during adjustment or

 

-NG-

there is a hardware error.

:

??

Close the iris and try again. If this fails,

 

TRY AGAIN

consult your Sony dealer.

 

BARS

The camera is outputting a color bar

 

 

signal.

 

 

Move the OUTPUT/DL/DCC+ switch to

 

 

one of the CAM positions.

EVS (Enhanced Vertical Scan)

This function enhances the vertical scan resolution from 400 to 450 lines (or 450 to 530 lines) to reduce flicker. However, this increases the aliasing.

Setting the shutter speed, CLS and EVS function

Notes on setting the shutter speed

The faster you make the shutter speed, the darker the image becomes. Check the brightness in the viewfinder, and if necessary increase the lighting level or adjust the iris.

When the shutter speed is very fast, shooting a high intensity subject may cause long vertical tails to appear on the highlights (smear).

Note on setting the CLS function

2 Operate the MENU/STATUS switch to align the cursor with the item “SHUTTER” in basic menu page 1.

A.IRIS:± 0

DTL LEV: ± 0

M.BLACK:± 0

STRETCH:± 0 mSHUTTER:1/250

3 Press the UP/ON button or DOWN/OFF button to select the required shutter speed, scan frequency or EVS.

Each time you press the UP/ON button or DOWN/ OFF botton, the shutter speed or clear scan frequency setting changes in the following order:

Chapter 5 Adjustments and Settings

After a few seconds the adjustment is complete, and the legend in the viewfinder changes to “AUTO BLACK -OK-”.

DXC-

 

 

D30WS/P(E)/V1

74

Chapter 5 Adjustments and Settings

 

The vertical scan frequencies of computer screens vary, and it may not be possible to eliminate the interference patterns entirely. Note also that the vertical scan frequency may change depending on the software being run.

DXC-D30

1/100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Value when

 

 

1/250

 

1/500

 

1/1000

 

1/2000

 

EVS

 

shipped)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1/60

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DXC-D30P

 

 

 

 

 

 

 

 

 

 

200.3Hz • • •

60.4Hz

 

DXC-D30

 

 

 

 

 

 

 

 

201.4Hz • • •

50.3Hz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DXC-D30P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chapter 5 Adjustments and Settings

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Image 48
Sony DXC-D30WSP 44Black Balance Adjustment Shutter Settings, Setting the shutter speed, CLS and EVS function

DXC-D30WS, DXC-D30WSP specifications

The Sony DXC-D30WSP and DXC-D30WS are professional broadcast cameras known for delivering exceptional image quality, reliability, and versatility. Both models are part of Sony's renowned lineup of 3-chip CCD cameras, designed to meet the high demands of television production and video broadcasting.

At the heart of the DXC-D30WSP and DXC-D30WS is a high-resolution 3CCD image sensor system. This technology allows for accurate color reproduction and enhanced sensitivity, making it suitable for various lighting conditions. The cameras produce vibrant images with low noise levels, ensuring that footage remains clear and detailed, even in challenging environments.

One of the standout features of these cameras is their adaptability. The DXC-D30WSP model is equipped with a wide range of interchangeable lenses, allowing operators to select the appropriate lens for their specific shooting needs. This flexibility is crucial for cinematographers and videographers who work on diverse projects, from documentaries to commercials.

The DXC-D30WS, which is similar in many ways to its counterpart, emphasizes ease of use with its ergonomic design and intuitive controls. This model is particularly well-suited for field work, as it is lightweight and portable, enabling easy transport without sacrificing performance. Both cameras have comprehensive connectivity options, including SDI and analog outputs, making them compatible with various production environments.

In terms of performance, the Sony DXC-D30WSP and DXC-D30WS feature enhanced digital signal processing. This technology optimizes image quality by improving sharpness, contrast, and color fidelity. In addition to standard recording formats, these cameras support multiple aspect ratios, making them versatile tools for filmmakers who want to achieve specific artistic visions.

Furthermore, both models include advanced white balance and exposure control features, allowing operators to fine-tune settings for optimal results. This precision is critical for maintaining consistent visual quality throughout a production.

In conclusion, the Sony DXC-D30WSP and DXC-D30WS are distinguished by their robust build quality, advanced imaging technologies, and user-friendly designs. They are ideal choices for professionals seeking reliable, high-performance cameras that can adapt to a wide range of shooting situations. Whether for broadcast television or independent filmmaking, these cameras remain a valuable asset in any production setup, ensuring that creators can capture stunning visuals with ease.