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 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 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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{{Flickr_image
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|image_source= https://www.flickr.com/photos/90900361@N08/48965983541/in/pool-camerawiki
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|image= https://live.staticflickr.com/65535/48965983541_1cd7fe8fc0_m.jpg
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|image_align= left
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|image_text= Film plane marking on a Casca II
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|image_by= Geoff Harrisson
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|image_rights= wp
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}}
 
{{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
 
|image=  http://farm9.staticflickr.com/8544/8646554795_10b6f38a46_m.jpg
 
|image=  http://farm9.staticflickr.com/8544/8646554795_10b6f38a46_m.jpg
|image_align= right
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|image_align=  
 
|image_text= Film plane marked with a red symbol
 
|image_text= Film plane marked with a red symbol
 
|image_by= Geoff Harrisson
 
|image_by= Geoff Harrisson

Revision as of 03:48, 19 December 2019

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 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.



Glossary Terms