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2. Flash (photography) - Wikipedia

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

   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 ...

3. Digital camera - Wikipedia

   en.wikipedia.org/wiki/Digital_camera

   Many camera phones and most stand alone digital cameras store image data in flash memory cards or other removable media. Most stand-alone cameras use SD format, while a few use CompactFlash, CFexpress or other types. In January 2012, a faster XQD card format was announced. [86] In early 2014, some high end cameras have two hot-swappable memory ...

4. Flash synchronization - Wikipedia

   en.wikipedia.org/wiki/Flash_synchronization

   In electronic digital cameras, the mechanism is usually a programmable electronic timing circuit, which may, in some cameras, take input from a mechanical shutter contact. The flash is connected electrically to the camera either by a cable with a standardized coaxial PC (for Prontor/Compur) 3.5 mm (1/8") connector [ 1 ] (as defined in ISO 519 ...

5. Through-the-lens metering - Wikipedia

   en.wikipedia.org/wiki/Through-the-lens_metering

   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 ...

6. Guide number - Wikipedia

   en.wikipedia.org/wiki/Guide_number

   Guide number distances are always measured from the flash device to the subject; if the flash device is detached from the camera, the position of the camera is irrelevant. Furthermore, unless a flash device has an automatic zoom feature that follows the setting of a camera's zoom lens, guide numbers do not vary with the focal length of lenses.

7. Hot shoe - Wikipedia

   en.wikipedia.org/wiki/Hot_shoe

   The flash unit sets up a circuit between shoe and contact—when it is completed by the camera, the flash fires. In addition to the central contact point, many cameras have additional metal contacts within the "U" of the hot shoe. These are proprietary connectors that allow for more communication between the camera and a "dedicated flash".