Slow flash is where you balancing flash with the ambient lighting. It’s called ’slow flash’ because the exposure is extended after the flash has finished so that the ambient lighting has time to be recorded by the film or sensor. [...]
Tag Archive for 'Flash'
Flash which fires in response to others. Studio flash heads can either be triggered directly, by cable, or remotely in ‘slave’ mode. The flash head has a light sensor which detects another flash at the instant it fires, and this [...]
Focal plane shutters consist of ‘first’ and ‘second’ curtains. The first curtain moves aside to expose the sensor and the second curtain moves across to cover it again at the end of the exposure. At higher shutter speeds the second [...]
This is a flash mode which can give more realistic light trail effects during slow-sync exposures. Normally, the camera will use ‘first-curtain’ sync. This means that the flash fires as soon as the shutter opens. The shutter may then stay [...]
Specialist flash unit for close-up photography and used where the subject is too close to the camera lens for an ordinary flash to work (the lens would obscure the flash). With a ring flash, the flash tube runs in a [...]
A technique for reducing or eliminating the red retinas of subjects shot using flash. Red-eye is often seen in portraits taken with on-camera flash. What causes it is that the flash illuminates the retina at the back of the eye, [...]
Making the flash fire whether it’s dark or not. In full auto mode, the camera will fire the flash in low light but leave it switched off in bright light. Forced flash mode makes it fire the flash in all [...]
The maximum shutter speed at which you can use flash. The shutters in digital SLRs are a set of ‘blinds’ or ‘curtains’ which move quickly in front of the sensor to expose it to the image, then cover it again. These [...]
Used for connecting an external flash. If your camera has a flash sync (x-sync) socket, you can connect it to studio flash systems. If it doesn’t, you may still be able to buy a flash adaptor from the camera maker [...]
Manually adjusting the power of the flash. Modern flashguns are designed to regulate their power automatically to produce the correct flash intensity for your subject. This doesn’t always work out (depending on the subject’s distance, characteristics, ambient lighting and so [...]
This is using flash with backlit subjects to lighten the side facing you, which would otherwise be in shadow. It’s often used in bright sunlight where the sun is casting ugly shadows. Due to the limited power of built-in flashguns, [...]
Flash and ambient lighting used together. In the old days, flash was used to completely replace (and swamp) any ambient lighting. Modern flash systems attempt to supplement existing lighting with ‘balanced’ flash which preserves the character of the ambient light [...]