Useful Information - Sharp Viewcam VL-WD450U Operation Manual

Useful Information
Hints for Better Shooting
• Position the subject in the center of the
scene. When you are using auto focus,
whatever is in the center of the scene is kept
in focus.
Lighting
For clear, good-quality 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
pages 47 and 48).
• Avoid backlit 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 with this lighting, use
Gamma Brightness Compensation or correct
the exposure level to improve the picture (see
pages 33 and 51).
Light trom behind Backlighting
• Before zooming, think about how to best
frame the shot. Frequent zooming produces
unattractive pictures. It also increases the
battery power consumption.
• 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:
• It may take longer to focus when zooming and
panning are used frequently.
Blue sky A
100,000 Clear dayat noon (100,000)
10,000
1,000
Clear dayat 10 am (65,000)
Cleardayat 3 pm(35,000)
Cloudydayatnoon(32,000)
Cloudydayat 10am(25,000)
Cloudy day, onehour aftersunrise (2,000)
Clear day,onehour before sunset (1,000)
Fluorescentlight nearwindow (1,000)
Q
4
%
100
Factory f loor(700-800)
Sales c ounterindepartment store (500-700'.
Bowling alley(500)
Library(400-500)
Office withfluorescent lighting(400-500) 7 P
Fluorescent desklamp(400)
Flashlight at3 ft (1 m) (250)
Shop stairway (100)
10
During intermission a t movie theater (15-35)
Cigarette l ighteratI ft (30cm)(15-20)
Candles onbirthday c ake at8 inches ( 20em)(10-15)
Candlelight
Note: 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.
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