Standards were adhered to in the industry and the usual film format is 24x36mm, allowing for 2mm gaps between frames. The standard roll length is 36 exposures but 12 and 24 exposures are also popular for today's 35mm camera. Some disposable cameras, used for taking holiday snaps and for special occasions, tend to use 6, 8, 10 or 15 exposure film.
In 1934, the Kodak Company launched the German built Kodak Retina, the first 35mm camera to use the modern film cartridge, familiar to camera users today. The next important innovation took place in the 1960s when Nikon introduced the Nikon F SLR. This was the beginning of the Single Lens Reflex system, a technology that went on to dominate photography. This type of camera proved more user friendly with functions such as a viewfinder, focusing screen and motor drive to automatically move the film on.
The introduction of digital cameras made a huge impact on the market but Digital SLRs have gained in popularity as the price has decreased and the 35mm camera is once again, secure. These cameras combine the convenience of a digital camera with the flexibility and quality of an SLR. Today, the camera and film market is shared by Kodak, Ilford, Fuji, Nikon, Olympus and Canon. The technology will, no doubt, evolve once more into territory not even thought of as yet but there will always be a place of affection for those early cameras that people grew up with.
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