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Glossary of photographic terms

These are some photographic terms used in The Panorama Factory.  We intend that these terms be used with their conventional meaning.

Be sure you have good translations of these terms before beginning to translate the string table.  Please contact support@panoramafactory.com if you need clarification of an English term or a references that can help explain the term.


35mm camera noun
a camera using 35mm wide film

35mm equivalent focal length noun
a way to describe the focal length of a camera by stating the focal length of a 35mm camera that produces the same field of view

APS camera noun
Advanced Photo System camera having a different film size and therefore different field of view from a 35mm camera for the same focal length

barrel distortion noun
a type of image distortion in a rectilinear projection where scale increases with increasing distance from the center of the image.

brightness falloff noun
a gradual reduction in image brightness with increasing distance from the center of the image.

cylindrical projection noun
see http://mathworld.wolfram.com/CylindricalProjection.html

digital camera noun
a camera using a digital sensor instead of film

digital SLR noun
a digital singlle-lens reflex camera, usually having interchangeable lenses

equirectangular projection noun
see http://mathworld.wolfram.com/EquirectangularProjection.html

exposure noun
the amount of light reaching the imaging surface (film or digital sensor).

focal length noun
distance from center of projection to the imaging surface (film or digital sensor); an inherent attribute of a camera's lens

focal length multiplier noun
a multiplicative factor that relates the focal length of a camera to the focal length of a 35mm camera that produces the same field of view

HFOV noun
horizontal field of view, usually expressed in degrees

pixel noun
a single dot in a digital image

rectilinear projection noun
the projection produced by a conventional camera; also called gnomic projection, see
http://mathworld.wolfram.com/GnomonicProjection.html

rotational camera noun
a type of panoramic camera in which the entire camera rotates as the film is pulled through the camera, painting the image through a slit onto a curved film plane and producing a cylindrical projection

sensor noun
light sensitive device that captures a digital image

swing lens camera noun
a type of panoramic camera in which the lens rotates from side to side, painting the image through a slit onto a curved film plane and producing a cylindrical projection

telephoto converter, tele converter noun
an adaptor that increases the focal length of another lens, decreasing the field of view

VFOV noun
vertical field of view, usually expressed in degrees

wide angle converter noun
an adaptor that reduces the focal length of another lens, increasing the field of view


Revised: April 18, 2007

 1999-2007 Smoky City Design, LLC and John Strait