Nikon N70 Instruction Manual - Page 48

Shutter-Priority Auto exposure mode You manually set the shutter speed you want. To freeze the action, use a high shutter speed; to create motion effects, choose a slower shutter speed. The N70's microcomputer automatically sets the proper aperture to match the manually selected shutter speed for correct exposure. See pages 52 to 54 for Shutter-Priority Auto operation. Note that Shutter-Priority Auto exposure mode operates only with Nikon lenses that have a built-in CPU (AF Nikkor and AI-P Nikkor lenses). Manual exposure mode Manual exposure control allows you to make both aperture and shutter speed settings. For a technically correct exposure, follow the recommendation of the camera's light meter, as indicated by LCD readout. To achieve a specific creative effect (e.g., intentional blur, intentional under- or over-exposure), disregard the LCD and modify the recommended exposure settings. For Manual exposure operation, see pages 58 to 60 Aperture-Priority Auto exposure mode You can control depth of field by varying the aperture. Smaller apertures make the background and foreground sharper (recommended for landscape pictures) whi le larger apertures tend to blur the background (recommended for portraits). Your selected aperture will determine the shutter speed that is automatically set by the camera's microcomputer. When using smaller apertures with correspondingly slower shutter speeds, remember that, generally, any speed below 1/(focal length in use) second, requires the use of a tripod to prevent picture blur due to camera shake. The higher the corresponding shutter speed to the aperture you set, the easier it is to stop action. Adjust the selected aperture if the speed is not appropriate for conditions or the specific effect you want. For Aperture-Priority Auto operation, see pages 55 to 57. 48