What Does Selective Focus Mean When Talking About Photography?

In photography the term ‘selective focus’ refers to a technique where the photographer selectively focuses on the subject of an image, essentially ignoring all other aspects of the scene. Using a shallow depth of field the subject can be rendered in sharp focus with the rest of the image blurring into the image foreground and background. This technique isolates the subject within the image, drawing the eye of the viewer to the exact point which the photographer wishes to be observed. The contrast of the sharp subject against the soft image background creates powerful, contemplative images.