Name: Charles Martel
Date registered: July 23, 2015
In photography, a “normal” lens means that it does not change significantly the perspective of the photographer over to his subject. In other words, this lens renders the subject almost exactly as the photographer sees it before him. It does not magnify nor does it make objects smaller.
The focal length of a lens is one of the factors determining its “power” of magnification. This distance is always expressed in millimeters (mm), except on some very early lenses built in the U.S. or the U.K.
In photography, the term “Lens” has a special meaning. The “Lens” is the opening covered in glass, through which a camera receives light from the target subject. A lens is actually and more accurately a “lens assembly”, and not a single “lens” per se, except for very basic and low cost cameras.
The basics Basically, a camera is simply a light-tight box, the famous “camera obscura” from in Italy, but with a lens instead of a simple hole, consisting of one or more glass lenses, allowing the entry and the focusing of the light, and a light control mechanism (shutter and diaphragm).
Photography dates from the early 1800s, or around 1826 or so. It was invented in France by Nicephore Niepce.
Photography, from the Greek word “Photos” (light) and “Graphis” (drawing) literally means “Drawing with Light”. In the modern world it is simply capturing images with a camera*, be it with silver-based** technology (commonly called film) or much more commonly nowadays, using digital technology. These images can then be used in different ways according to the …