Bellows camera
A bellows camera is a type of camera designed in the era of the daguerreotype [1] ( years 1840-1850 ) and, with many improvements, still in use today. It comprises a flexible bellows that forms a light-tight seal between two adjustable frames, the frontal one with the lens, and the other on the back of the camera with the ground-glass screen that will be replaced by the photographic film holder to take de photo. [1]
The bellows is flexible, with an accordion fold. It covers the space between the lens and the film, and flexes to accommodate frame movements. The front frame is a plate at the front of the camera that holds the lens and usually a shutter.[2]
On the back side of the camera, there is a ground-glass screen, used to focus and compose the image before exposure, and is replaced by holder with the sensitive film, a photographic plate or a digital image sensor, to take the shot. The front and rear frames can be moved in various ways relative to each other, unlike most other types of cameras. This allows to control the focus, depth of field and perspective . The camera is normally used with a tripod or a similar type of support.[3]
Bellows[change | change source]
In photography, the bellows is a foldable part that is used in large and medium format photographic cameras, to allow the movement of the lenses with respect to the focal plane for a suitable focus, used in certain camera models such as the one in the picture..
There are two types of bellows:
- Bag bellows, usually used in cameras with lenses of short focal length
- Square bellows, for cameras with a lens of greater focal length
References[change | change source]
- ↑ 1.0 1.1 Stroebel, Leslie D. (1986). View camera technique. Boston: Focal Press. p. 212. ISBN 978-0-240-51711-7. OCLC 12216165.
- ↑ Adams, Ansel; Baker, Robert (1980). The Camera. Little Brown & Company. ISBN 0-8212-1092-0.
- ↑ Stroebel, Leslie D. (1986). View camera technique. Boston: Focal Press. p. 2. ISBN 978-0-240-51711-7. OCLC 12216165.