The hottest thing
in the digital
camera market is undoubtedly
the digital SLR is better known as a digital SLR. While SLR
cameras flying shelves dealer, many new users are confused about the terminology. Most people know that
SLR stands for "SLR." Given that nearly all SLR
cameras accept interchangeable lenses, it seems, should be known as more
SLR (MLR)
cameras.
If you want to understand how
SLRhis name will be necessary in the history of the
camera for diving. Cameras first were similar to those used today for the cameras. The photographer seen through
the lens, focused together, then added a single film to the plate behind the lens of an image. The whole process was crude by modern standards, has had excellent control of the photographer when you look directly at the
lens of existing images, composing the image.
Although this was good for the momentLife, portraits and landscapes, this process is not suitable for action photography. These early cameras could only record one frame at a time. Why do not you ever seen a
camera motor.
Recognized the need to predict the effects of risks, begin to experiment with the introduction in several
camera makers-design of the film. With a
camera, photographers have managed to trigger a lot of pictures without having to reload. Although this improved throughputdramatically, causing another problem. The roll of film was just around the
optical chamber, which means that the photographer could not see through
the typewriter and vomiting.
See the cameras seem to keep things at a glance
The lower end of consumer cameras rolled typically uses a
low cost fixed focus "lens, so that a single camera is sufficient. Improving the quality of the optics, however, require the
lensfocus, and because the photographers could not look through the
lens with a
roll-camera was a big problem. One of the first solutions to this problem was the range finder - a type of
camera that offers a wide distance in the viewfinder. In determining the area of the viewfinder, the photographer can match your goal - often with excellent results.
Twin lens reflex cameras offer a newSolution
While the rangefinder type cameras worked well,
the camera industry is constantly evolving. A second method allows the photographer to focus and
compose published
twin "SLR" cameras. This device uses two identical lenses arranged on the other in the manner of over-and-under shotgun. The film unfolds through the
lens below, while the photographer can focus through the
lens at the top. The
double-lens cameras werequite large, so designer mirrors and lenses, the top
of the camera, hence the term "reflex.
Now the user can access the
camera at the level of life and continue to find the image on the frosted glass mirror behind the preview
mentioned objective. Because the user to adjust the
lens focus to
higher transmission shifts down "in accordance with
the objective of".
Although both
cameras rangefinder and
twin lens reflex, offers a credibleto concentrate and to preview a shot, then neither the photographer who has really
the goal. exact composition may become difficult.
SLR cameras to take a step forward
Placed in their quest to help people look beyond the real "prize" turned
the lens, the leaders of the
camera to the periscope - a simple device with two mirrors opposite corner to the light curve. Periscopes are easy to understand - all the children can build aPair of mirrors and a few pieces of wood.
In a
camera, the lower mirror placed directly into a 45 degree angle behind
the lens. The light hitting the mirror up to throw a glass floor. During a second mirror is the image on the screen to show the user does not seem right, because the mirrors are usually things. Thus, developers of a fixed
camera lens, so speculate. If you look through the viewfinder on an
SLR,through a prism, which is the image on a screen, the image projected by the mirror behind the display
of the target.
There is only one problem. If you paid attention, you probably have realized that low levels of light in the path of the film (or digital sensor, as the case may be.) Now, the photographer can see if the
lens but the image can be projected onto the plane film.
Therefore,
the plane was to design add a new feature. They had to move the mirror. Just enough time to do a show, as if the mirror was removed, the photographer did not see what the
lens. So conceived the mirror "immediate return. At the time of exposure, the mirror is the increase of theft, fire the shutter and the mirror snaps down. This is an incredible feat when you consider that the immediate return of the ice to turn and again in the blink of an eye, but also for life> Camera.
Once the immediate return mirror was perfected, photographers design their images to be
slow. Contrary to
Twin Lens Reflex, needed this new generation of
camera, but a
goal to focus and shoot. Thus they were known as ... You guessed it .... Single
Lens Reflex.
