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When a flash passes through the eyes and rebounds at the back of the eye, it causes a red reflex in an image, turning the subject's eyes red. The hue is mostly caused by a high concentration of blood in the choroid. The effect can also be influenced by the near proximity of the flash and camera lens. In children, a different hue red reflex ...
Balancing the flash power and ambient lighting or using off-camera flash can help overcome these issues. Using an umbrella or softbox (the flash will have to be off-camera for this) makes softer shadows. A typical problem with cameras using built-in flash units is the low intensity of the flash; the level of light produced will often not ...
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Either the flash is firing too late or the shutter speed is too fast (shutter moving vertically). Note the different exposure levels. In photography, flash synchronization or flash sync is the synchronizing the firing of a photographic flash with the opening of the shutter admitting light to photographic film or electronic image sensor. PC-socket
Although the term “digicam” originated as a syllabic abbreviation for “digital camera”, it is now used primarily to refer to an old compact digital camera or, in other words, a discontinued point-and-shoot camera with a fixed lens. [32] [33] [34] Digicams emphasize portability and ease of use, and they often include a built-in flash. [35]
This also applies to Sony's SLT digital cameras, which use the image sensor for exposure metering all the time. As of 2012, no digital SLR or SLT camera on the market supported any form of real-time TTL flash metering using the image sensor. However, it can be expected that such methods will be introduced as image sensor technology progresses ...
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Also constructed for the 1984 Summer Olympics was a high-speed camera for the sports photographers covering the event. [6] This followed on from Canon's previous attempt at a high-speed sports photography camera, the F-1 High Speed Motor Drive camera, produced for the 1972 Winter Olympics held in Sapporo, Japan.