Settings and Adjustments 5 Chapter

Shutter Settings

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 camcorder is powered off.

Shutter speeds

There are five shutter speeds, from 1/100 s (DSR-300) or 1/60 s (DSR-300P) 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 camcorder 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.

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

The vertical scan frequencies of computer screens

1 3 2

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.)

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

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A.IRIS : ± 0￿

DTL LEV: ± 0￿

M.BLACK: ± 0￿

STRETCH: ± 0￿ mSHUTTER: 1/250￿

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3 Turn the MENU dial to select the required shutter speed, scan frequency or EVS.

The shutter speed or clear scan frequency setting changes in the following order:

DSR-300

1/100

(Value when

 

1/250

 

1/500

 

1/1000

 

1/2000

 

EVS

shipped)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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.

1/60

DSR-300P

200.3Hz • • • 60.4Hz

201.4Hz • • • 50.3Hz

DSR-300

DSR-300P

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Chapter 5 Adjustments and Settings