Panasonic NV-GS90 User Manual

Record mode

LSQT1291

Shutter Speed
Adjust it when recording fast-moving subjects. 
Aperture
Adjust it when the screen is too bright or too dark.
≥Set to Tape Recording Mode.

1) Shutter speed
2) (Aperture) Iris/gain value

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Press the [AUTO] button.

Manual shutter speed adjustment
≥Avoid recording under fluorescent light, mercury 

light or sodium light because the colour and 
brightness of the playback image may change.

≥If you increase the shutter speed manually, the 

sensitivity lowers and accordingly the gain value 
increases automatically, which may increase 
the noises on the screen.

≥You may see vertical lines of light in the 

playback image of a brightly shining subject or 
highly reflective subject, but this is not a 
malfunction.

≥During normal playback, image movement may 

not look smooth.

≥When recording in the extremely bright place, 

the colour of the screen may change or flickers. 
If so, adjust the shutter speed manually to 1/50 
or 1/100.

Manual iris/gain adjustment
≥Set the shutter speed before setting the 

aperture (iris/gain) when manually adjusting 
both settings.

≥If the value does not become “OPEN”, you 

cannot adjust the gain value.

≥If the gain value is increased, the noise on the 

screen increases.

≥Depending on the zoom magnification, there are 

iris values that are not displayed.

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1/25 to 1/8000 seconds: Tape Recording Mode
The shutter speed closer to 1/8000 is faster.
If [AUTO SLW SHTR] is set to [OFF], then the 
shutter speed will be set between 1/50 and 
1/8000.

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CLOSE (Closed), F16, ..., F2.0,
OPEN (Opened: F1.8) 0dB, ..., 18dB
Value closer to [CLOSE] darken the image. 
Value closer to [18dB] brighten the image.
Values with dB are gain values.

MANUAL

AF/MF

1

)

2

)

1/25

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