Aperture

Aperture is the bigger the whole the more light come in by using f-stop or f2 the litter the whole the less light come in so you take the picture as if you are close but your really not. I like aperture because it eliminate movement and tripod- 2 second time in the subject sit still but if you move then the light would have movement. For the top picture I think they use f22 and the whole is little, bottom picture the light has a bigger whole an then more light will come in an I think this picture used f2 because the light is shinning.