Transcription: We have seen with the right combination of f-stop and shutter speed, the right amount of light reaches the film and we get a good exposure. One that's not too light or too dark. But how do we know what that right combination is? Use the camera's meter. All modern SLRs have through the lens or TTL light meters built in. A photoelectric cell or sensor measures the amount of light reflecting off the scene you see in your viewfinder. It converts that information to an f-stop and shutter speed combination and displays that combination in your viewfinder. The meter is saying I've measured the amount ...
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