The single-lens reflex (SLR) camera is one of the simplest
cameras to use and offers an extreme flexibility for advanced
users or beginners to photography. Single-lens reflex derives
from a camera that uses a mirror system built in the camera that
permits the user to see exactly what will be captured by the
film or digital system. This is of great significance because
most other camera systems (without digital backs) do not permit
you to view exactly what will be captured. As such, these other
systems may reveal a different image other than the one you
attempted to capture if you don’t compensate correctly.
Advantages and Use of an SLR Camera In the SLR camera system, a
mirror sits behind the camera lens at a 45-degree angle with the
film or digital input resting behind the mirror, blocked from
light. The mirror bounces the image through the camera lens and
out the viewfinder for the photographer to see the image. Once
the shutter is released, that mirror flips up for the duration
of time the shutter speed wa