Understanding Metering Modes on Your Camera

An underexposed or an overexposed photo results from using incorrect settings. The exposure settings are determined using a process called metering, based on the metering mode that is selected. Having an understanding of the metering modes can give you much better control over the image exposure. There are three main metering modes that you should know.

1. Evaluative / Matrix metering – The default mode on most DSLRs. It measures light across the whole frame. Great for evenly lit scenes, with not a lot of variation in lighting.

2. Spot metering – This is the most accurate – yet hardest mode to master. It reads the intensity of the light over a small circular area in the center of the image. Great for scenes with varied lighting and when utilizing Manual Mode.

3. Center-weighted average metering – This mode meters the light across the whole picture but places greater emphasis on the center of the image. Great for portraits, since it leaves any highlights, or shadows, in the corners of the image out of the equation.