Everyone, of any ability, who has taken a picture with a digital camera knows that getting the tones right will make or break your image. Choosing the right part of a scene to meter from is crucial, but how do you which part of the scene is best?
When taking a light reading you want to find a midtone somewhere in the scene, or even just out of the frame. This could be light-coloured foliage, or even a Caucasian face. However, sometimes there won’t be anything around that’s the right tone for you to take a light reading. In these instances, using grey card can help you achieve perfect tones.