Useful Information - Sharp ViewCam Slim VL-AX1S Operation Manual

Appendix

Useful Information

Hints for Better Shooting
• Position the subject in the centre of the
scene. When using auto focus, whatever is in
the centre of the scene is kept in focus.
Position the subject in
the centre.
• 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 in this lighting, use
Gamma Brightness Compensation or correct
the exposure level to improve the picture (see
pages 34 and 57).
Light from behind
• 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:
• It may take longer to focus when zooming and
panning are used frequently.
93
Focus manually when you
need to position the
subject off centre (see
pages 54 and 55).
Backlighting
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.
Brightness
Situation (Lux)
(Lux)
Blue sky
100,000
Clear day at noon (100,000)
Clear day at 10 am (65,000)
Clear day at 3 pm (35,000)
Cloudy day at noon (32,000)
Cloudy day at 10 am (25,000)
10,000
Cloudy day, one hour after sunrise (2,000)
Clear day, one hour before sunset (1,000)
1,000 Fluorescent light near window (1,000)
Factory floor (700–800)
Sales counter in department store (500–700)
Bowling alley (500)
Library (400–500)
Office with fluorescent lighting (400–500)
Fluorescent desk lamp (400)
Flashlight at 1 m (250)
100 Shop stairway (100)
During intermission at movie theatre (15–35)
Cigarette lighter at 30 cm (15–20)
Candles on birthday cake at 20 cm (10–15)
10
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.