Twin
Lens Reflex Cameras
The Twin
Lens Relfex camera was first introduced by Rollei in 1929 and
the principle behind it was a real stroke of genius. Within
a short time it had brought the Rollei name worldwide recognition.
Nearly every top 6x6 photographer that time was using a Rolleiflex
6x6. Since then there have been other manufacturers who have
designed and built cameras like this. Even today there is a
Seagull TLR camera on the market.
Twin lens reflex
camera have two lenses that are similar, one is to view the
image with while the other is the lens use to take the photograph.
The twin lens reflex camera design predated the single lens
reflex and the focusing screen provides more accurate visual
information of the scene than a direct vision camera but less
than a SLR.
The
image is projected up to a ground glass viewing screen via a single
mirror onto a ground glass screen, while the image is it
is not upside down, it is laterally reversed and remains in the
view finder continuously when the exposure is made. In the viewing
screen of a view camera, the image is both upside down and laterally
reversed
Some
photographers find reversal of the image (the right side is on
the left) help them compose in a different way than a SLR, and
this along with the fact that the photographer seems preoccupied
by looking directly down instead of through make the camera ideal
for certain types of documentary work.
Because
there is no mirror movement like in the single
lens reflex camera, when the shutter is released there is
little noise, and many photographers like this aspect of their
operation - the view of the scene is continuous
Unlike
a SLR, these cameras have a parallax error,
are rather bulky, most have fixed lenses and those with interchangeable
lens have a limited range, however they do produce excellent photographs.
I used one
of these cameras to take these images. |
