Panasonic NV-DS1EN Operating Instructions Manual page 74

Digital video camera
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For the following subjects and recording
situations, the Auto Focus System cannot
provide precise adjustment.
Use the Manual Focus Mode instead. (-►
34
)
O
Recording subjects with a part of it near the
Movie Camera and another part far away from it
As the Auto Focus adjusts on the centre part of the
image, it is often impossible to bring the nearby and
distant parts of the subject into focus.
When you want to record a person with a distant
mountain in the back, it is not possible to focus on
both.
© Recording subjects behind glass covered with
dirt or dust
As the focus is adjusted on the dirty glass, the
subject behind the glass is out of focus. When
recording a subject across a street on which cars are
running, the focus may be adjusted on the cars.
© Recording subjects in dark surroundings
As the amount of light information entering through
the lens is greatly reduced, the Movie Camera cannot
adjust the focus precisely.
O Recording subjects surrounded by the objects
with shiny surfaces or much light reflection
As the Movie Camera adjusts the focus on the
objects with shiny surfaces or much light reflection,
the subject may go out of focus.
Therefore, when recording at a lake or the sea,
evening scenes, fireworks or under special types of
lighting, the subject may be out of focus.
© Recording fast-moving subjects
As the internal focusing lens is moved mechanically,
it cannot follow fast-moving subjects without delay.
Therefore, subjects like children running back and
forth may temporarily go out of focus.
O Subjects with weak contrast
As the Movie Camera adjusts the focus based on
vertical contours in the picture, subjects with little
contrast such as a white wall may be out of focus.
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