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2. Flash (photography) - Wikipedia

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

   A full-power flash from a modern built-in or hot shoe mounted electronic flash has a typical duration of about 1ms, or a little less, so the minimum possible exposure time for even exposure across the sensor with a full-power flash is about 2.4 ms + 1.0 ms = 3.4 ms, corresponding to a shutter speed of about 1 ⁄ 290 s. However some time is ...

3. Red-eye effect - Wikipedia

   en.wikipedia.org/wiki/Red-eye_effect

   The effect can be avoided physically by instructing the subject to look away from the lens, increasing the brightness of the photographic location, or moving the flash further away from the lens, or digitally by using the red-eye correction option on digital cameras or by removing the effect in editing software. Scholars have developed a number ...

4. Backscatter (photography) - Wikipedia

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

   Dust particles reflected by a smartphone flash. In underwater scenes, particles such as sand or planktonic marine life near the lens, invisible to the diver, reflect light from the flash causing the orb artifact in the image. A strobe flash, which distances the flash from the lens, eliminates the artifacts. [7]

5. Image editing - Wikipedia

   en.wikipedia.org/wiki/Image_editing

   The red-eye effect, which occurs when flash photos are taken when the pupil is too widely open (so that light from the flash that passes into the eye through the pupil reflects off the fundus at the back of the eyeball), can also be eliminated at this stage.

6. Fill flash - Wikipedia

   en.wikipedia.org/wiki/Fill_flash

   When near-axis fill flash is added in that situation it hits the shaded eyes and sunlit face equally so the eyes will always remain darker than the face. What happens on a cause-and-effect level is the flash acts like fill and more key light where it overlaps.

7. Stroboscopic effect - Wikipedia

   en.wikipedia.org/wiki/Stroboscopic_effect

   The stroboscopic effect visibility meter can be applied for different purposes (see IEC TR 63158 [12]): Measurement of the intrinsic stroboscopic-effect performance of lighting equipment when supplied with a stable mains voltage; Testing the effect of light regulation of lighting equipment or the effect of an external dimmer (dimmer compatibility).

8. A New Book About ‘The Flash’ Reveals Rare Photos ... - AOL

   www.aol.com/book-flash-reveals-rare-photos...

   Fans of The Flash can add now another title to their collection. Fresh off the premiere of “The Flash” movie in theaters, DC Comics has released a new illustrated book that offers a behind-the ...

9. Flash suppression - Wikipedia

   en.wikipedia.org/wiki/Flash_suppression

   Flash suppression is a phenomenon of visual perception in which an image presented to one eye is suppressed by a flash of another image presented to the other eye. To observe flash suppression, a small image is first presented to one eye for about a second while a blank field is presented to the other eye.