This picture has parts of the subject in focus and other parts blurred — presumably because of the low f-stop. This made me curious about whether there is a formula for calculating how the f-stop translates to what portion of the image is in focus/appears sharp. This is the depth of field! calculated using this equation.
This picture has parts of the subject in focus and other parts blurred — presumably because of the low f-stop. This made me curious about whether there is a formula for calculating how the f-stop translates to what portion of the image is in focus/appears sharp. This is the depth of field! calculated using this equation.