Canon EOS 10D instruction manual

Using the Built-in Flash

• 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 < > < > < >).

•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)

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