CamCyclopedia
What is Flash?
A camera flash is a device that generates short bursts of light very quickly to compensate for the lack of brightness in a dimly lit setup for photography. It can be either found in-built into a typical camera or be mounted externally with the help of a connective port known as a ‘hot shoe’.
Primary flash sources used are xenon lamps and LEDs. Xenon lamp flash can produce a short but strong burst of light by discharging the energy stored in a capacitator by high-pressure discharge. In comparison, LED flashes can generate consistent but weaker burst.
Flash in Galaxy Camera
- Rear camera: LED flash
In Galaxy, most models have a LED flash for use by the rear camera.
Shooting using the LED flash consists of two flash actions: assistive and main flash. The assistive flash goes off first at a low intensity to measure and focus the amount of light reflected by the flash. The main flash uses the brightness setting calculated by the amount of light reflected earlier by the assistive flash. It subsequently emanates the right amount of light to take pictures.
2. Front camera: Display flash
The front camera of Galaxy uses the display like a flash. It fills the entire screen with a solid color and raises the brightness to act as a supplementary light source. There is only one main flash for the use of the front camera, unlike the rear one. The display brightens up from the very start of the shoot with the selfie camera. Once the display reaches its maximum brightness, the focus and brightness are adjusted before taking a photo.
3. Guide to shooting with Flash
It is recommended to use the flash when you are at an appropriate distance of 1.5 to 2.5m from the main subject juxtaposed against a dim setup. If the subject is any nearer or farther, the flashlight reflected will either be too much or too little. Also, if you are filming a person, it’s best to be at a distance from them as the flashlight could be blinding.
4. Flash Mode
There are three types of flash modes, i.e. Off, Auto, and On. The flash does not work when set to ‘Off’. The camera senses the ambient brightness and turns on the flash when shooting in a dim environment automatically, with the use of ‘Auto’. The flash is always on when put to ‘On’.
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