Instruction manual

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frequently fogs up; this can be a real problem in cool climates when camera
equipment is brought inside after being outside in the cold for some time.
Even though moisture may be wiped off the lens, the lens may continue to fog
up until its temperature equals the surrounding air.
Condensation can also take place within a camera or camcorder and cause
major problems. For this reason, most camcorders have a dew indicator that
detects moisture or condensation within the unit and shuts it down until the
moisture has evaporated. A message such as "DEW" will typically be displayed in
the viewfinder.
To control the effects of condensation, you should allow 20-30 minutes warm-
up time whenever you bring a camera or camcorder from a cold to a warm
environment. Also, putting the camera in a plastic bag will help prevent the lens
from becoming foggy; if condensation does form, it will do so on the bag instead
of the camera. [Note: Do not store your camera in a plastic bag; the case can
deteriorate.]
If condensation occurs, remove the memory card and battery from their
compartments and keep the doors open until everything dries out, and remove the
lens cap. Don't take the camera or camcorder out into the cold again until the
condensation is gone because the moisture may freeze, causing permanent
damage.
10.3 Filters
As a rule, filters are of little use with a digital camera except as a means to
physically protect your lens. Consider using a Skylight, 81A or UV filter, shooting
your pictures through it and removing it only when you're using another filter for
special effect. A damaged filter is much cheaper to replace than a lens.
Protection of this type is particularly important when the camera is used in high
winds where dirt or sleet can be blown into the lens.
10.3.1 UV Filter
Today's coated lenses don't transmit UV light, so a UV filter doesn’t add much
functionality. UV filters do slightly enhance image color and contrast, and can
reduce haze in distant scenes; this can bring the scene being photographed more
in line with what the eye sees. Video cameras tend to be rather sensitive to ultra-
violet light, which can add a kind of haze to some scenes. This is the preferred
filter for CAP purposes, and mainly serves to protect the camera lens without
degrading quality or interfering with the camera’s automatic functions. Always use
a multicoated filter, which helps reduce glare and helps with light transmission
(which results in a brighter image).
10.3.2 Polarizing Filter
A polarizing filter is one that only passes light vibrating in a certain direction,
which is good for eliminating reflections from shiny surfaces such as glass or
water. Most autofocus cameras use polarization tricks as part of the autofocus
system. If needed, always use a ‘circular’ polarizing filter because ‘linear’
polarizing filters cannot be used effectively with most auto-exposure and