102E-TTL II autoflash obtains high-precision and consistent flash shots.If necessary, the built-in flash will pop-up automatically in low-lightor backlit conditions. (except in <3> <5> <7> modes)Regardless of the light level, you can press the <D> button to pop-upand fire the built-in flash whenever desired.d : For fully automatic flash photography. The shutter speed (1/60 sec. - 1/250 sec.) and aperture are set automatically, just asin <1> (Full Auto) mode.s : Enables you to set the desired shutter speed (30 sec. - 1/250 sec.). The camera then automatically sets the aperture toobtain the proper exposure at the shutter speed you have set.f : Enables you to set the desired aperture. The camera thenautomatically sets the shutter speed (30 sec. - 1/250 sec.) toobtain the proper exposure at the aperture you have set.Against dark backgrounds such as the night scenes, slow-syncshooting will be set so that both the subject and background areexposed correctly. The main subject is exposed with the flash,and the background is exposured with a slow shutter speed.Because automatic slow-sync shooting uses a slow shutterspeed, always use a tripod.If you do not want a slow shutter speed to be set, set C.Fn-03[Flash sync. speed in Av mode] to [1: 1/250sec. (fixed)].(p.168)a : You can set both the shutter speed (bulb or 30 sec. - 1/250sec.) and aperture. The main subject is exposed properly bythe flash. The background exposure will vary depending on theshutter speed and aperture.8 : The flash result will be the same as the <d> mode.Using the Built-in FlashUsing the Built-in Flash in the Basic ZoneUsing the Built-in Flash in the Creative Zone
