Gamma Brightness Compensation - Sharp ViewCam VL-NZ150U Operation Manual

_ints for Better
Shooting
- Position the subject in the center of the
scene. When using auto focus, whatever is in
the center of the scene is kept in focus.
ighting
For clear, good-quaNty recording, 500 to
100,000 lux is needed. Recording is possible
with less light, but the picture quality may
suffer. Adequate lighting is also essential for
correct white balance.
Position the subject in Focus manually when you
the center, need to position the
subject off center (see
page 42).
• Avoid backNt subjects. For the best picture,
shoot with the light source behind you.
When the background is brighter than the
subject, the subject often becomes too dark.
If you have to record in this lighting, use
Gamma Brightness Compensation or correct
the exposure level to improve the picture (see
pages 29 and 43).
_\ // \ //
Light from behind Backlighting
- Before zooming, think about how to best
frame the shot. Frequent zooming produces
unattractive pictures. It also runs down the
battery more quickly.
• When image shaking is noticeable during
zoomed-in telephoto shooting, use a tripod or
push the Power Zoom control to the W side to
zoom out.
- Horizontal panning (lateral movement) and
tilting (vertical movement) should be done
slowly to emphasize the wide expanse of a
scene or the height of a building, and to
make scenes easy to watch during playback.
- Use a wide-angle setting for fast-moving
subjects.
Note:
e It may take longer to focus when zooming and
panning are used frequently.
Bluesky A
100,000 Clear d ayatn00n(100,000)
Clear d ayat10am(65,000)
Clear d ayat3 pm(35,000)
Cloudy dayatnoon(32,000)
Cloudy dayat10am(25,000)
101000 Z
Cloudy day,onehouraftersunrise (2,000)
Clear d ay,onehourbefore sunset ( 1,000)
1,000 Fluorescent lightnearwindow (1,000)
Factory f loor(700 800)
Sales counterindepartment store(500 700)
Bowling alley(500)
Library(40(F500)
0fficew_thflu0rescentNghting(400_500) _ P
Fluorescent desk lamp(400)
Flashlight at3 ft (1 m) (250)
100 Sh0pstairway (100)
10
During intermission a t movie theater ( 15 35)
Cigarette l ighterat1 ft (30cm)(15 20)
Candles o n birthday cake at8 inches(20cm)
(10 15)
Candlelight
Note:
o The figures in the chart are approximations.
Tips on good lighting
In most outdoor, daytime scenes, natural
lighting is adequate for home videos. Indoors,
however, artificial lighting is usually required.
Video lights with halogen lamps provide the
most natural artificial light over a long operating
life.
70