(3) Lenses
Generally, there are many kind of C-mount lenses for the video
camera on the market, for example, different aperture (iris),
different focal distance, zoom lenses and so on. Those having a
shorter focal distance are called "wide-angle" lenses, and those
having a longer focal distance are called "telephoto". Lenses of
different focal distances have special characteristics and you can
take advantage of these in shooting. When the camera is fit with
a zoom lens, it is extremely easy to vary the focal distance.
Anyhow, make choice of the most appropriate lens for your
application or system.
IMPORTANT
To ensure maximum performance, be sure to keep the inside
of lens and inner part of camera module free from dust or
fingerprint.
CAUTION
If the lens (C-mount) size exceeds 100mm in diameter, 170mm
in length and 1Kg in weight, both the camera and lens should be
secured.
Because the camera housing-strength is not enough to support
such a weight or stress, may cause damage it.
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7. TROUBLE-SHOOTING GUIDE
What may initially appear to be trouble is not always a real problem.
Make sure first according to the following table before requesting
service.
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Symptoms Check
points
* Is the power supply unit correctly connected ?
* Is the POWER switch of the connected AC
Power
No power
is supplied
adapter set to ON ?
No picture
* Lens cap on.
* Is it extremely dark on subjects ?
* Improper connection or setting.
* Other system equipments work properly.
* Connection cables between equipments are
properly.
* Camera setting (switches and others) are right
position.
Focus or picture
* Dirt on camera lens.
not sharp * Lens improperly focused.
* Is proper lens installed or set ?
Picture not
* Exposure of camera lens to extremely bright,
satisfactory
does ND filter need
* Inadequate lighting (dark).
