Canon EOS 70D, Basic Instruction Manual

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189
D
Using the Built-in Flash
Effective Range of Built-in Flash
[Approx. in meters/feet]
ISO Speed
EF-S18-55mm f/3.5-5.6 IS STM
EF-S18-135mm f/3.5-5.6 IS STM
EF-S18-200mm f/3.5-5.6 IS
Wide Angle: f/3.5 Telephoto: f/5.6
100 1-3.4/3.3-11.2 1-2.1/3 3-7.0
200 1-4.8/3.3-15.9 1-3.0/3 3-9.9
400 1-6.9/3.3-22.5 1-4.3/3.3-14.1
800 1 2-9.7/4.0-31.8 1-6.1/3.3-19 9
1600 1.7-13.7/5.6-45.0 1.1-8.6/3 5-28.1
3200 2.4-19.4/8.0-63.6 1.5-12.1/5.0-39.8
6400 3.4-27.4/11.2-90.0 2.1-17.1/7.0-56.2
12800 4.8-38.8/15.9-127.3 3.0-24.2/9.9-79.5
H (25600) 6.9-54.9/22.5-180.0 4.3-34.3/14.1-112.5
If you use a super telephoto lens or large-aperture lens and the bottom of
the picture looks dark, using an external Speedlite (sold separately, p.193) is
recommended.
When you use the built-in flash, detach any lens hood and keep at least
1 meter/3 3 feet away from the subject.
If the lens has a hood attached or if you are too close to the subject, the
bottom of the picture might look dark due to the obstructed flash.