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D Using the Built-in Flash
Effective Range of Built-in Flash
(Approx. in meters/feet)
ISO Speed
EF-S18-135mm f/3.5-5.6 IS STM
EF-S15-85mm f/3-5.6 IS USM
Wide Angle: f/3.5 Telephoto: f/5.6
ISO 100 1-3.1 / 3.3-10.3 1-2.0 / 3.3-6.4
ISO 200 1-4.4 / 3.3-14.6 1-2.8 / 3.3-9.1
ISO 400 1-6.3 / 3.3-20.6 1-3.9 / 3.3-12.9
ISO 800 1.1-8.9 / 3.6-29.2 1-5.6 / 3.3-18.2
ISO 1600 1.6-12.6 / 5.2-41.2 1-7.9 / 3.3-25.8
ISO 3200 2.2-17.8 / 7.3-58.3 1.4-11.1 / 4.6-36.5
ISO 6400 3.1-25.1 / 10.3-82.5 2.0-15.7 / 6.4-51.6
ISO 12800 4.4-35.6 / 14.6-116.7 2.8-22.2 / 9.1-72.9
ISO 16000 5.0-39.9 / 16.4-130.9 3.1-24.9 / 10.2-81.8
H1
(equivalent to ISO 25600)
6.3-50.3 / 20.6-165.0 3.9-31.4 / 12.9-103.1
H2
(equivalent to ISO 51200)
8.9-71.1 / 29.2-233.3 5.6-44.4 / 18.2-145.8
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 a lens hood is attached or if the subject is too close, the built-in flash
will be obstructed and the bottom of the picture may look dark.
Do not perform flash photography when the built-in flash is held down
with your finger or not fully raised for some other reason.
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.259) is
recommended.