Exposure Settings - F-Stop - Canon 40D Overview Manual

Canon 40D Digital Camera Overview Manual
Exposure Settings – F-Stop
The F-Stop is a numerical designation indicating the size of the lens aperture (or opening). The F-
Stop setting uses a numerical designation, such as F-14. Along with Shutter Speed and ISO, it is one
of three settings that determine camera exposure.
On the Canon 40D, the F-Stop setting is displayed on the top row of the control panel.
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