What I mean by the Prime here is Fixed Focal Lens (FFL, lenses with fixed focal length. This lens retains the mechanical parts that can move to 'lock' object, but - in contrast with a zoom lens - the distance does not change its focus. With thus, to adjust the proportion of objects in the frame, the photographer must move closer or away from the object.
Examples of these types of lenses:
35 mm f/1.65
50 mm f/1.8
85 mm f/1.8
Examples of these types of lenses:
35 mm f/1.65
50 mm f/1.8
85 mm f/1.8
