Time-Lapse Photography Art and Techniques by Mark Higgins
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The exposure compensation function will have a plus <strong>and</strong> a minus to indicate that it is a tool to make<br />
your exposure darker or brighter.<br />
The exposure compensation function on most cameras has a square with a plus <strong>and</strong> a minus on it. This<br />
is a way of either over- or underexposing quickly if you need to do so.<br />
If you change its value from 0.0 to +1.0, for example, then it will make the image brighter <strong>by</strong> one<br />
stop. If you go from 0.0 to −1.0 it will make the picture darker <strong>by</strong> one stop. The big danger of using<br />
exposure compensation is that you could set it <strong>and</strong> forget that you have used it. A day after using it you<br />
might cheerfully get the camera out of the bag, take some pictures <strong>and</strong> the exposure will be totally<br />
wrong. Use this tool with caution <strong>and</strong> don’t catch yourself out.<br />
Please note that this function only works when an element in the exposure triangle is being chosen<br />
<strong>by</strong> the camera. If the camera is in manual mode with manual ISO it will not make any difference to<br />
your imagery. The reason for this is that exposure is only controlled <strong>by</strong> shutter speed, aperture or ISO.<br />
If you use exposure compensation it can only change one of these elements <strong>and</strong> <strong>by</strong> being in manual you<br />
lock them down.<br />
Metering patterns
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