Pentax A3000 A3000 Manual - Page 6

FEATURES When an SMC Pentax-A lens is used with this camera, you can use all the three exposure modes: Programmed AE, Aperture-priority AE and Programmed Auto Flash. When the conventional K- or Kf-mount lens is used, you can use this camera in the Aperture-priority and conventional Auto Flash modes. !.a I, Programmed AE Mode The camera automatically selects the most appropriate combination of shutter speed and aperture to obtain correct exposure, simultaneously changing them according to the brightness of the subject. This mode is most suitable for those who do not want to be bothered by setting exposure controls or those wanting to take "action" pictures (Refer to pp. 22/23 for details.) Aperture-priority AE Mode When you set the aperture manually, the shutter speed is automatically adjusted according to the brightness of the subject to provide correct exposure. Use this mode for ordinary picturetaking or portraiture, or when depth of field is important for your picture (Refer to pp. 24/25). Programmed Auto Flash Mode When you use a Pentax dedicated Auto Flash Unit with this camera in the Programmed AE mode, the camera automatically selects the proper aperture and shutter speed to control flash output (Refer to p. 27). • 2