A half-frame camera is a camera using a film format at half the intended exposure format. The Pen series is a family of Half-frame cameras made by Olympus from 1959 to the beginning of the 1980s A common variety is the 18x24mm format on regular 135 film. It is the normal exposure format on 35mm movie cameras. For still cameras using the 35mm film, the usual format is 24x36mm, so still cameras taking 18x24mm exposures are called half-frame cameras.
There was a vogue of half-frame cameras in the 1960s, mainly from Japan, originating with the Olympus Pen models. The Pen series is a family of Half-frame cameras made by Olympus from 1959 to the beginning of the 1980s It allowed to build a very compact camera, yet using the regular film that can be bought anywhere, unlike the other subminiatures that used exotic films (16mm, 9. 5mm, etc. ). This vogue ended when cameras like the Rollei 35 or the Olympus XA showed that it was possible to make cameras as small as the half-frame ones, but taking full 24x36mm exposures. The Rollei 35 is a 35mm miniature viewfinder Camera built by Rollei. The Olympus XA was a 35 mm Rangefinder camera built by Olympus of Japan.
With a half-frame camera, you take twice the number of pictures that you would normally take with your roll of film. For example, you take 72 exposures on a 36-exposure roll, 48 on a 24-exposure one, and so on.
The most advanced half-frame camera that was designed as such from the start is the Olympus Pen F single lens reflex. The Olympus Pen F, Pen FT and Pen FV were very similar half-frame 35 mm Single-lens reflex (SLR Cameras with interchangeable
For some specific needs, there were cameras originally designed for full-frame pictures that were produced in very small series as half-frame models, for example some Leica, Nikon or Robot rangefinders, and some Alpa SLRs. Leica Camera AG is a leading German optical company that has been designing and developing Cameras since 1913 and manufacturing them in series production since ( also known as Nikon or Nikon Corp, is a Multinational corporation headquartered in Tokyo Japan specializing in Optics A robot is a mechanical or Virtual Artificial agent In practice it is usually an electro-mechanical system which by its appearance or movements Alpa was formerly a Swiss Camera design company and manufacturer of 35 mm cameras They are mainly interesting as collectible.
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This article was originally based on "Half-frame" in Camerapedia, retrieved at an unknown date under the GNU Free Documentation License.
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