Canon EOS 850 User Manual
Page 47
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Automatic Flash Coupling Range Chart
(based on f/2.8)
Slide Film
Color Print Film
ISO 100
3.3 - 14.1ft
2.3 - 19.7ft
1.0 - 4.3m
0.7 - 6.0m
ISO 400
Up to 27.9ft/8.5m
Up to 39.4ft/12.0m
Fill-in Flash Shooting Distance Range:
Up to 11.4ft/3.5m
The AF auxiliary light automatically
emits in extremely dark settings for au
tofocus. The distance range is approxi
mately 3.3 - 13.1ft/1.0 - 4.0m.
Set the flash switch to “OFF” to cancel the
flash when you want to take pictures of
sunsets, or are in places where flash use
is not allowed, (e.g. theaters, museums).
Before using a clip-on flash with the EOS
750 or 750QD, be sure the camera’s flash
head is down.
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