The
reflex viewing
system functions
through the
camera lens.
Known as either
a single-lens-reflex
or a through-the-lens
reflex, this
system is
the first
choice for
filmmaking
but the type
of cameras
using this
system are
more expensive
than range
finders. Most
systems operate
intermittently
by splitting
the light
coming through
the lens between
the film (while
the shutter
is open) and
the viewing
optics (while
the shutter
is closed).
They put an
angled mirror
on the front
side of the
spinning shutter
to divert
image light
toward the
viewfinder
between exposures.
Some reflex
cameras have
beam splitters
that provide
light to either
or both, a
viewfinder
and/or a low
resolution
video tap.
With reflex,
what you see
really IS
what you get
(regarding
framing and
composition).
With considerations
like TV cutoff
and other
format critical
decisions,
a reflex viewfinder
gives you
the necessary
precision
to do professional
work.
