Flash duration

Flash duration
A time measure taken from a flash between it reaching 50% of its peak value to the point when it has diminished to the same value.
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Flash Duration
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Flash duration
Techniques Glossary Flash duration
A time measure taken from a flash between it reaching 50% of its peak value to the point when it has diminished to the same value.

Flash Duration
Flash Duration is something that may also have an impact, depending on the type of photography you do.

Flash Duration
The discharge time of an electric flash unit which determines its motion-freezing and Kelvin (the shorter, the Cooler) characteristics.

Flash duration
The camera's flash synchronisation ensures the flash is emitted while the shutter is open.
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Flash duration
Refers to the amount of time it takes for a flash to fire. Flash duration typically varies from about 1/1000 to 1/20,000 sec.

Flash duration (flash output) is determined by the flash metering system. Like Tv mode the camera always works in fill flash mode when in Av mode.

Despite the short flash duration the chosen flash sync. speed has certain effects on the final image. The main (flash) subject itself is quite independent from the chosen flash sync. speed because it is exposed with the speed of the flash duration.

Shutter Speed and Flash Duration
When you're shooting with a flash indoors, the flash duration is what determines how long the light gets through to the sensor, not the shutter speed.

Most electronic flash units have a maximum flash duration (the length of time the light is on) of about 1/800th second, and a minimum flash duration as short as 1/20000th second, thus you can "freeze" almost any action with the flash.

5 ms and flash duration under 10 ms (at half peak), which could be used with X synch sockets of leaf shutters at speeds up to 1/100 s.

Some other features to look for are, flash duration, multiple power levels, and built-in slave. Faster flash duration are better for stopping action in sports or wildlife photography.

It has a sensor, which measures the amount of light needed for a correct exposure, and then adjusts flash duration accordingly.
If you don't have a hot shoe, a slave flash would be an alternative.

Besides the controllable lighting, the reason why flash equipment is used is because the flash duration can be made to be extremely short. If you cut the power down to 1⁄16th power on all four flash units, the flash duration (i.e.

Other important considerations when evaluating different monolights are flash duration and recycle time.

If you decide to work with strobe lighting, make sure it has fast flash duration. Broncolor Grafit packs are ideal for this as they have the option to control the speed of the flash duration.

I have a front strobe [with an] extremely fast recycle time and a short flash duration. If you're shooting insects, you need both of those.

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Flash Duration Refers to the very short amount of time it usually takes for a flash to fire. Automatic flash control varies the brightness by varying the duration of the flash.

Many camera models on the market today actually measure the light that reflects off of the film plane, controls the flash duration of the electronic flash (some flash units have a flash duration range of 1/1000 of a second to 1/50,000 of a second), ...

Powered by Elinchrom battery packs, the Ranger A heads have a minimum flash duration of just 1/5120 sec. Had Markewitz used heads with more common, slower flash durations, we would see faint but visible motion blur.

AUTOMATIC FLASH - Electronic flash unit that automatically adjusts flash duration and intensity based on flash-to-subject distance, providing correct exposure.

It can accommodate flash durations of about 1/15,000th of a second. If you are taking shots of little kids, it would be the perfect lighting equipment to use.

Water droplet photography is very easy to get started with, and you can get as complex as you want. There are three tricks to making beautiful, time-scultped water pictures with a single small flash: Light placement, timing and flash duration.

For example, the Broncolor Grafit A2 RFS is a 1600 watt/second unit with a host of features, including precise control of flash duration (1/125 to 1/6000sec), fast recycling (as short as .03 seconds), ...

In this case the flash duration is extremely short and has the same effect as using a very high shutter speed. This last statement assumes that you are using a flash sync shutter speed of 1/60 or higher and have low ambient light levels.

See also: Flash, Light, Camera, Photograph, Speed