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2. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   Dot-matrix displays typically use 5×7 pixels per character. Seven-segment LED displays were in widespread use in the 1970s and 1980s, but rising use of liquid crystal displays, with their lower power needs and greater display flexibility, has reduced the popularity of numeric and alphanumeric LED displays. Digital RGB

3. Photographic lighting - Wikipedia

   en.wikipedia.org/wiki/Photographic_lighting

   A skilled photographer can manipulate how a viewer is likely to react to the content of a photo by manipulating the lighting. [6] When shooting outdoors, changing locations may be required, as well as waiting for the ideal time of day (or even the ideal time of year in some cases) for the lighting to create the desired impression in the photo.

4. Digital photography - Wikipedia

   en.wikipedia.org/wiki/Digital_photography

   The rise of mirrorless cameras has changed digital photography. These cameras are popular for their modern tech, portability, and versatility. Unlike DSLRs, mirrorless cameras have electronic viewfinders or LCD screens for previewing photos and manual controls. They are smaller and lighter, but may have fewer lens options and shorter battery life.

5. Light-emitting diode physics - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode_physics

   The materials used for the LED have a direct band gap with energies corresponding to near-infrared, visible, or near-ultraviolet light. LED development began with infrared and red devices made with gallium arsenide. Advances in materials science have enabled making devices with ever-shorter wavelengths, emitting light in a variety of colors.

6. Science of photography - Wikipedia

   en.wikipedia.org/wiki/Science_of_photography

   The science of photography is the use of chemistry and physics in all aspects of photography. This applies to the camera, its lenses, physical operation of the camera, electronic camera internals, and the process of developing film in order to take and develop pictures properly.

7. Flash (photography) - Wikipedia

   en.wikipedia.org/wiki/Flash_(photography)

   For more sophisticated and longer-range lighting several synchronised flash units at different positions may be used. Ring flashes that fit to a camera's lens can be used for shadow free portrait and macro photography; some lenses have built-in ring-flash. [16] In a photographic studio, more powerful and flexible studio flash systems are used.

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. Digital camera - Wikipedia

   en.wikipedia.org/wiki/Digital_camera

   Hasselblad 503CW with Ixpress V96C digital back, an example of a professional digital camera system. A digital camera, also called a digicam, [1] is a camera that captures photographs in digital memory. Most cameras produced today are digital, [2] largely replacing those that capture images on photographic film or film stock.