Canon EOS 10D instruction manual Exposure Warning List, To the lens

Exposure Warning List

Mode	Blinking Warning	Indication	Solution
		The subject is too	1) Increase the ISO speed.
		dark.	2) Use flash.
		The subject is too	1) Decrease the ISO speed.
			2) Attach a neutral density filter
		bright.
			to the lens.
		The shot will be	1) Turn the <	> to set a
			slower shutter speed.
		underexposed.
			2) Increase the ISO speed.
		The shot will be	1) Turn the <	> to set a faster
			shutter speed.
		overexposed.
			2) Decrease the ISO speed.
		The shot will be	1) Turn the <	> to set a larger
			aperture (smaller f/number).
		underexposed.
			2) Increase the ISO speed.
		The shot will be	1) Turn the < > to set a smaller
			aperture (larger f/number).
		overexposed.
			2) Decrease the ISO speed.
		The desired depth of	1) Move away from the subject
			and try again.
		field cannot be
			2) If a zoom lens is used, use
		obtained.
			the shortest focal length.
			1) Increase the ISO speed.
		The subject is too	2) Use a flash (the result will be
		dark.	the same as using Program
			AE < >).
		The subject is too	1) Decrease the ISO speed.
			2) Attach a neutral density filter
		bright.
			to the lens.

The sample warnings apply when a lens having a maximum aperture of f/3.5 and minimum aperture of f/22 is attached to the camera. The maximum and minimum aperture warning displays will differ depending on the lens attached to the camera.

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