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.
Adjusting the iris can change the aperture. The iris is the physical subject the camera operator is changing and the aperture indicates the size created by the changes of the iris. F-stop is a unit of measurement that calculates the amount of light that is let in through the aperture hole. The smaller the F stop number, the brighter the image. F stop numbers are often indicated in fractions; if the numbers are seen in fraction form, the larger number indicates a brighter image. Going back to the F stop number not in fraction form, the changes in aperture can alter the depth of field. A shallow depth of field can be created through a smaller aperture. If a specific depth of field is necessary and is made possible through the aperture size, other aspects of light such as the ISO and the shutter speed must be considered to keep the same amount of light. It is important to note that each of these changes can alter more than the amount of light; it can increase noise or make motion more blurry.
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