Canon Speedlite 380EX Instruction Manual - Page 11
Flash, Other, Modes
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2. Flash with Other Modes The E-TTL auto flash system can also be used with a Type-A camera set to Av (aperture-priority AE), Tv (shutter speed-priority AE), or M (manual). Set the FP flash switch to the green dot (normal sync). • When you press the shutter button halfway, the shutter speed and aperture setting are displayed as in any AE mode. Shutter Speed and Aperture Setting According to Mode Mode Full Auto and Programmed Image Control Shutter Speed Automatically set (1/60-1/X sec.) Flash Aperture Automatically set Automatically set P (1/60-1/X sec.) Automatically set Automatically set Av (30-1/X sec.) Manually set Manually set Tv (30-1/X sec.) Automatically set M Manually set (buLb-1/X sec.) Manually set • Manually set: Set by the use . Automatically set: Set by the camera. • 1/X sec.: Camera's maximum sync speed (see page 46). II When you press the shutter button completely, the Speedlite fires a test preflash immediately before the shutter is released. The flash exposure reading obtained with the preflash is used to calculate the optimum output of the main flash. IN The exposure for the background is set with the shutter speed and aperture. If flash is used in the DEP (Depth-of-field AE) mode, it will be the same as using flash in the Program AE mode. 20 II. Speedlite 380EX with Type-A Cameras (1) Rash with Aperture-Priority AE When you want to control the depth of field or when you want the background correctly exposed, use aperture-priority AE. You set the aperture and the camera sets the shutter speed automatically to suit the background's light level. The E-TTL auto flash system controls the flash output according to the aperture you set. O$4 • O Av O laryStt Set the camera to Av (aperturepriority AE) and set the desired aperture. 0 0 o0 0 0 0 4 28 35 50 70 105 CID Check that the FP flash switch is set to the green dot. Press the shutter button halfway to focus the subject. Check that nothing is blinking in the viewfinder and press the shutter button completely to take the picture. In low-light conditions, a slow sync speed is set automatically. A tripod is recommended for slow sync speeds. If the maximum sync speed blinks, the background will be overexposed. If the 30" sync speed blinks, the background will be underexposed. Change the aperture setting until the sync speed stops blinking and stays on. 21