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Canon EOS 10D User Manual

Page 98

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98

Using the Built-in Flash

C.Fn-05-3 disables the built-in flash from firing. (

→p.147)

C.Fn-15-1 enables 2nd-curtain sync with the built-in flash. (

→p.150)

With C.Fn-03-1, the flash sync speed will be fixed at 1/200 sec. in the <

> mode.

(

→p.146)

When using an EX-series Speedlite, press the built-in flash back into the camera
before mounting the external flash.

When using the built-in flash, keep at least 1 m/3.3 ft away from the subject. Other-
wise the lens barrel may partially obstruct the flash coverage and cause part of the
image to look dark.

When using the built-in flash, detach any hood attahed to the lens. A lens hood will
partially obstruct the flash coverage.

When a super telephoto lens or fast, large-aperture lens is attached, the built-in flash
coverage might be obstructed.

The built-in flash’s coverage is effective with lens focal lengths as short as 18mm.
Lens focal lengths shorter than 18mm will result in flash shot having a dark periphery.

” and < > will be displayed in the viewfinder while the built-in flash is being

charged.

E-TTL is an abbreviation for Evaluative-Through-The-Lens.

In <

> or <

> mode, if you set the shutter speed faster than 1/200 sec., the

camera will automatically reset it to 1/200 sec.

AF flash exposure is always based on the aperture value at the time the shot is taken,
and controlled by E-TTL autoflash linked to the active AF point and weighted for the
main subject.

If the camera finds it difficult to focus, the AF-assist lamp (

→p.39) will light automati-

cally (except <

> <

> <

>).