This show us that how aperture works
f/1.4 - f/2.8 shows us that the picture of the background will be blurry and the object in the front will be clear with .
f/4 - f/5.6 the picture show us that in the front it gets clear but the back is still blurry
f/8-f/16 the picture is clear
Aperture is photographic lens can be adjusted to control the amount of light reaching the film or image sensor. In combination with variation of shutter speed, the aperture size will regulate the film's or image sensor's degree of exposure to light.
I got this information from https://en.wikipedia.org/wiki/Aperture
f/1.4 - f/2.8 shows us that the picture of the background will be blurry and the object in the front will be clear with .
f/4 - f/5.6 the picture show us that in the front it gets clear but the back is still blurry
f/8-f/16 the picture is clear
Aperture is photographic lens can be adjusted to control the amount of light reaching the film or image sensor. In combination with variation of shutter speed, the aperture size will regulate the film's or image sensor's degree of exposure to light.
I got this information from https://en.wikipedia.org/wiki/Aperture