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extraneous light

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extraneous light [ik′strān·ē·əs ′līt]
(graphic arts)
Undesired illumination striking photographic area or copy field.


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This process of suppressing extraneous light is complex, expensive and only partially effective: even after decades of refinements, the best filters are not 100% percent successful at blocking the bleed through of non-specific photons.
Each lens should have a lens hood that should be used at all times to prevent extraneous light from striking the front surface of the lens that could cause loss of quality in the photographs that are being created.
These products of ecomagination(SM), available as spots or floods, feature advanced optical control to concentrate the white LED light on the targeted area and effectively diminish wasted extraneous light.
 
 
 
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