What is the difference between the aperture and the iris? In your own words, what is an F-stop? What is the difference between each stop? Explain in detail.
The difference between the aperture and the iris is that the iris is a circular disc that opens and close depending on how much light you want the camera to see and the aperture is the name of the hole on the iris that lets light in. An F-stop is the unit of measurement that dictates how wide the aperture is and thus how much light goes into the lens. The difference between each stop is that each point either doubles or halves the area of the aperture depending on whether you increase or decrease the F-stop.
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