The range of distance that appears acceptably sharp in an image
The amount of light entering the camera
The speed at which the shutter opens and closes
The focal length of the lens used
Questions & Step-by-Step Solutions
What does the term 'depth of field' refer to?
Step 1: Understand that 'depth of field' is about how much of a photo is in focus.
Step 2: Know that a photo can have parts that are sharp (in focus) and parts that are blurry (out of focus).
Step 3: Realize that depth of field is the distance between the closest and farthest objects that are in focus.
Step 4: Learn that three main factors affect depth of field: the size of the camera's aperture (opening), the focal length of the lens (how zoomed in it is), and how far away the subject is from the camera.
Step 5: Remember that a larger aperture (smaller f-number) creates a shallower depth of field, making less of the image in focus, while a smaller aperture (larger f-number) creates a deeper depth of field, making more of the image in focus.
