ABSTRACT
Video/television cameras have become increasingly user-
friendly over the years. Various controls that previously
needed watchful readjustments can now be left to circuitry
that tweaks them automatically. On the face of it, there may
seem to be little point in getting involved with the
technicalities of its controls. It looks as if you only need to
point the camera and zoom in and out to adjust the size of
the shot-leaving circuitry to take care of all other issues such
as exposure, light quality, and so on. Why do we need to
learn about lens apertures, depth of field, lens angles, and
other details?
