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Flash is a device which provides additional light to a scene. It can be used to help fill in a dark area of a photo, to provide light if there isn't sufficient light to begin with, or it can help to improve the composition of a particular photo, by creating your own source of light.

4 votes

What is wrong with my camera?

I shot some 400 speed film at 800 If by this you mean that you loaded your camera with ISO 400 film but set the light meter to ISO 800, then you are already underexposing by one full stop. The l …
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6 votes

Why do I get inconsistent results with Canon ETTL flash?

This allows you to use the flash to isolate a subject from the background, especially if the flash provides a significant fraction of the overall lighting in the scene, but also makes it very difficult … to produce consistent illumination of a deep scene when using a flash. …
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