Before the arrival of digital cameras, photographs were taken on film based cameras. Films were transparent strips of plastic with a gelatine emulsion on which the negative of pictures is imprinted and can later be developed into a proper photograph. These films varied in a great degree of factors with each other and developed with the arrival of new technology. With the passage of time, films evolved in terms of texture picture quality, brightness, contrast etc. Needless to say these forms of films had huge number of limitations like being vulnerable to exposure, being delicate, difficult to handle, prone to becoming damaged with even slight wear and tear and loosing colour with even minimal exposure to uv light. Yet, the photographic film is endeared and loved by all lovers of photography alike despite its obvious inferiority. Some even prefer it over digital photographs as film based photos tend to have a distinctive look and partly for their sentimental value as being an endearing object reminiscent of simpler times. For a larger part of the 20th century box camera or viewfinder was widely used by novice photographers. While going for quality photography studio hire these cameras were the utmost choices.
Cheap and simplistic, yet provided commendable photographs under various different situations. These cameras were simply fit with a single lens, had nominal lens aperture control . Even the camera shutter was only a mildly inhibitive and worked fairly well. Folding roll camera was a similar alternative with only few differences and was a close second to it in terms of popularity. Even the most of these cameras were quite ordinary in terms of functionality, although it did have some higher end versions with enhanced optical capabilities and precision camera shutters. Few even had better zooming functionality.
Fold-film cameras were considered better by most due to their portability .They’re have been minor improvements in fold film cameras and there have been only a few higher end , professional quality cameras of this sort. Their ability to provide a larger negative was also a much liked feature. Range finder cameras were also a popular introduction to photography. Quite similar to its predecessor cameras: both viewfinder and folding roll cameras, rangefinder had some much needed improvements. The range finder camera relies on a distinctive viewing mechanism for acquiring the desired target and to focus.
The range finder camera allows for accurate focus, however, by using two views of the same subject to adjust focus. In this camera there are two images in the viewfinder. One is usually only a portion of the viewer area and is usually slightly yellowish in colour. The photographer adjusts the focus ring on the lens and as they do the two images move. The viewfinder provided ability to better focus on the subject and thus procures a brilliant photograph.
Twin lens reflex camera is another innovation in the field of photography. This camera was fairly popular in the mid 20th century. This camera had two identical lenses adjacent to each other on top of one another. The two images produced by these cameras were later combined using a mirror that was inclined at 90 degrees. The images produced by this camera were quite sharp and crisp. Single lens Reflex Cameras are perhaps the most popular cameras and are used even today. The slr had all the technologies and improvements of its predecessors.