Flash isn't just emergency lighting for parties and indoor scenes. In fact, the sensitivity of digital camera sensors today means you rarely need it for that reason alone. Instead, flash is now used for creative lighting effects, often off-camera, placed elsewhere in the scene and operated remotely. Here are some articles about flash, its technologies and what to look for. Photo by Jonathan Borba on Unsplash
Watt-seconds is the usual measurement for the power output of professional flash systems. 1 watt-second is equivalent to the power of 1 watt for a period of 1 second. It’s used because it’s a measure of raw power output independent of any lighting modifiers, angle of coverage or reflective surfaces [Read more…] about Watts (watt-seconds)
Flash duration is the length of time a flash is generating light. The flash duration is typically very short, often between 1/500sec and 1/1000sec, but often even faster than that. [Read more…] about Duration (flash)
A cable connector for socket external flash units that’s still found on higher-end cameras like pro DSLRs but is becoming less and less common as photographers switch to wireless flash systems. These are usually triggered by a ‘master’ unit attached to the camera.