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How the Focus Adjustment
Works
If you look at an object through a magnifying glass and
move it closer or further away from your eye, you will
reach a point where the object becomes clearly visible.
Being focused or in focus means that the subject can
be seen with optimum clarity and sharpness. The
distance between the lens and the point where the rays
of light come together is called Focal Distance or Focal
Length and depends on the size and shape of the lens.
Human eyes have lenses too, and when we look at
objects at different distances, the shape of these jenses
changes automatically so that we can always see the
objects clearly.
E Auto Focus Adjustment
The image of the subject enters the Movie Camera
through the lens and is converted into an electrical
signal (video signal) for recording onto tape. Based on
this signal, the Auto Focus System automatically
adjusts the focal distance by moving the focusing lens
forward or backwards.
The focus is adjusted on the subject in the centre of the
Finder.
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