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2. Photographic lighting - Wikipedia

   en.wikipedia.org/wiki/Photographic_lighting

   Photographic lighting refers to how a light source, artificial or natural, illuminates the scene or subject that is photographed; put simply, it is lighting in regards to photography. Photographers can manipulate the positioning and the quality of a light source to create visual effects , potentially changing aspects of the photograph such as ...

3. Conservation and restoration of photographs - Wikipedia

   en.wikipedia.org/wiki/Conservation_and...

   Light levels should be kept at 50–100 Lux (5–10 footcandles) for most photographs when in use for research as well as exhibit. [23] Exposure of color slides to the light in the projector should be kept to a minimum, [22] and photographs should be stored in dark storage. [23] The best way to preserve a photograph is to display a facsimile. [7]

4. Luminous efficiency function - Wikipedia

   en.wikipedia.org/wiki/Luminous_efficiency_function

   There are two luminous efficiency functions in common use. For everyday light levels, the photopic luminosity function best approximates the response of the human eye. For low light levels, the response of the human eye changes, and the scotopic curve applies. The photopic curve is the CIE standard curve used in the CIE 1931 color space.

5. Illuminance - Wikipedia

   en.wikipedia.org/wiki/Illuminance

   Illuminance diagram with units and terminology. In photometry, illuminance is the total luminous flux incident on a surface, per unit area. [1] It is a measure of how much the incident light illuminates the surface, wavelength-weighted by the luminosity function to correlate with human brightness perception. [2]

6. Sunny 16 rule - Wikipedia

   en.wikipedia.org/wiki/Sunny_16_rule

   Sunlit subject shot on a digital camera set to ISO 100, exposed at f/8 at 1/400 second which is the same exposure value as f/16 for 1/100 second, the recommended "sunny 16" exposure. In photography, the sunny 16 rule (also known as the sunny f /16 rule) is a method of estimating correct daylight exposures without a light meter. Apart from the ...

7. Light value - Wikipedia

   en.wikipedia.org/wiki/Light_value

   The later Pentax Spotmeter V and Digital Spotmeter indicated directly in EV for ISO 100, but they made no mention of "light level", "light value", or LV. A synonym for incident light value, from the Additive system of Photographic EXposure . Zakia and Stroebel (1993) and Stroebel, Compton, Current, and Zakia (2000) used the term in this sense.

8. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

9. Conservation and restoration of paintings - Wikipedia

   en.wikipedia.org/wiki/Conservation_and...

   Textiles can make up many different objects from cushions to dresses. All with varying degrees and types of degradation. Light typically causes dyes to fade, and some fibers (silk) are more sensitive to physical damage from light. Low light levels are recommended to prevent damage.