Sony DSC F828 Operating Instructions - Page 157

The relation between the shutter speed and aperture To shoot clear images, selecting the proper exposure is very important, adding to the chance of achieving the proper focus. The exposure is an amount of light that is determined by the shutter speed and aperture value. The shutter speed is adjusted by the time, longer or shorter. The aperture is adjusted by the scale of the lens hole, larger or smaller. When the shutter speed is faster by one step, the aperture is opened by one step to get the same exposure. The movement of the program diagram The program diagram shows the movement of the combination of the shutter speed and aperture value. The program shift function (page 54) quickly shifts the combination of exposure that the camera has decided upon. Program diagram (example) The movement of the program shift (EV: 10, ISO sensitivity: 100) (example) • When the EV value remains the same, the brightness of the recorded image is the same. Darker subject Brighter subject 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 EV 2 Aperture F8 F5.6 F4 F2.8 F2 1 1/4 1/15 1/60 1/250 1/1000 1/2 1/8 1/30 1/125 1/500 1/2000 Shutter speed Additional information 157