A zoom camera having a lens barrel assembly with adjustable focus and resolution power of photographing lens, the zoom camera including a zoom lens barrel assembly including a plurality of barrels for performing a zooming and focusing operation while reciprocating in a direction of an optical axis, the zoom lens barrel assembly being fixed on a camera body, a rotational barrel coupled to one of the lens barrels of the zoom lens barrel assembly and rotatable and movable in the direction of the optical axis for adjusting the focus of the lens, and a lens frame containing a lens and rotatably coupled to the rotational barrel for adjusting the resolution power of the lens.