Saturday, April 23, 2011

Adjusting studio flash on location

Balancing a light from a studio strobe with available light outside can give you some stunning images. When you use a flash outside, you have to control two exposure at the same time. Reason for this is that you are working with two different sources of light.

One of the sources of light is ambient light. Ambient light is the light comes from the sun. Sometimes it also called Available light. Other source of light is called Artificial light, the light comes from studio strobe. Ambient light  is the light we cannot control. We have to adjust the camera settings to the Ambient light for its proper background exposure. Artificial light is the light we can control. Once we have the exposure set for the Ambient light, we can adjust the settings of the strobe to match and get a perfect fill light.

As told we can't control the Ambient light, its really important that you shoot at a time of a day when the light looks its best. Try shooting just after sun rise or just before sun set. If you shoot at the middle of the day you won't get the desired result. Since you are using a studio strobe on location we have some limits what we can do with our camera.

There are three steps to get started:
1. Set your camera to manual mode. Make sure your shutter speed is set to your camera's sync speed.
2. Point your camera to the area just behind your subject, and adjust your aperture to have correct exposure.
3. Meter your flash: adjust your flash  up in telemeters at the same f-stop value, as your camera settings.

Once you finished these steps, you are ready to shoot. There are two more steps which would help you out.
4. Take a test shot and see how everything looks. You might want to adjust the shutter speed if you want to change the ambient light exposure. You can always overexpose or underexpose the background depending of the looks you want to achieve.  

You should keep measuring the Ambient light as its changing continuously.

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