Pentax P3 P3 Manual - Page 31
underexposure.
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USING PROGRAMMED AUTO FLASH MODE Pentax dedicated flashes can be used with this camera, regardless of whether it is set to the Programmed AE or Metered Manual mode. 1. Attach the flash to the camera. 2. Set the flash mode selector to AUTO (red, green or yellow). This does not apply to the AF200SA, AF240Z and AF160SA 3. Turn the flash switch on. 4. When the flash is ready, it is indicated by the glowing of S mark in the viewfinder. (When the meter's timer switch is off, the 5 mark also disappears.) 2. Using in Programmed AE mode • AF200SA , AF200T, AF280T and AF400T are compatible with this mode. • As soon as the flash is ready, the camera is automatically switched to work at the flash sync speed of 1/100. The aperture is also automatically set to the programmed f-stop as shown in the table, depending on which AUTO position you choose. (At ISO 100) AF200T AF280T AF400T Red f/2.8 f/4 f/4 Green f/5.6 f/8 Yellow - - f/8 f/11 (AF200SA: f/4 at ISO 100) ■ As the film speed changes, the aperture also changes automatically. ■ As shown in the above table, the aperture is set to f/2.8 when the AF200T is used in the Red AUTO, and therefore, using a lens whose maximum aperture is as small as f/4, for instance, will result in underexposure. 29 •