Difference between revisions of "Film plane"
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The '''film plane''' is the plane in which the film (or the electronic sensor) is placed. In a properly-designed camera, this is synonymous with the [[Focal_plane#Focal_Plane|focal plane]], onto which light entering a lens is focused. In many cameras with simple lenses, the film plane is not a plane (i.e. not flat), but curved, to compensate for inadequacies of the lens, and in swing-lens [[panorama camera]]s, curved to follow the movement of the lens. | The '''film plane''' is the plane in which the film (or the electronic sensor) is placed. In a properly-designed camera, this is synonymous with the [[Focal_plane#Focal_Plane|focal plane]], onto which light entering a lens is focused. In many cameras with simple lenses, the film plane is not a plane (i.e. not flat), but curved, to compensate for inadequacies of the lens, and in swing-lens [[panorama camera]]s, curved to follow the movement of the lens. | ||
| − | Many non-SLR cameras have their film plane marked on the top plate, as the close-focussing distance is always measured from the film plane, not from the front of the lens. | + | Many non-[[SLR]] cameras have their film plane marked on the top plate, as the close-focussing distance is always measured from the film plane, not from the front of the lens. |
{{Flickr_image | {{Flickr_image | ||
|image_source= http://www.flickr.com/photos/90900361@N08/8646554795/in/pool-camerawiki | |image_source= http://www.flickr.com/photos/90900361@N08/8646554795/in/pool-camerawiki | ||
Revision as of 04:35, 14 April 2013
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The film plane is the plane in which the film (or the electronic sensor) is placed. In a properly-designed camera, this is synonymous with the focal plane, onto which light entering a lens is focused. In many cameras with simple lenses, the film plane is not a plane (i.e. not flat), but curved, to compensate for inadequacies of the lens, and in swing-lens panorama cameras, curved to follow the movement of the lens.
Many non-SLR cameras have their film plane marked on the top plate, as the close-focussing distance is always measured from the film plane, not from the front of the lens.
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| Film plane marked with a red symbol image by Geoff Harrisson (Image rights) |
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