Canon Speedlite 420EX User Manual
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Flash in Other Picture-Taking Modes
Slow-Speed Sync for Dark Backgrounds
By using a slow sync speed with flash, you can correctly expose both the
subject and a dark background. For automatic slow-speed sync, set the
camera to the
When using slow-speed sync, use a tripod to prevent camera shake.
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Flash with slow-speed sync.
Flash in Full Auto mode.
0 Under fluorescent lighting, a greenish color cast may result in the picture. And
under tungsten lighting, an orange color cast may result.
■-W-' • To cancel automatic slow-speed sync, set the camera to the
page 24) and set the desired shutter speed and aperture.
• E-TTL autoflash will then automatically control the flash exposure.
• If you use an EOS camera mounted with an EF 135mm f/2.8 Soft Focus lens
during hand-held flash photography, note the following:
1)
To obtain a better soft-focus effect, set the aperture manually toward the
maximum opening.
2) Set the shutter speed as slow as possible while preventing camera shake.
3) Check that the flash is ready, then take the picture.
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