Canon Program Line

Program Line

The following program line applies when the camera is in Program AE <d> mode.

	100
ISO	200
		400
		800
			1600

			6	7	8	9	10	11	12	13	14	15	16	17		18	19	20	21	22	23
		5																				32
	4																						22
																								Aperture
	3
																						16
	2
																						11
	1																							value
																						8
0
																						5.6
-1																						4		.(f/no
-2
-3																						2.8		)
																						2
-4
																						1.4
-5
																						1.0
EV
30			15	8	4	2	1	2		4	8	15	30	60	125 250 500 1000 2000 4000 8000

Shutter speed

Program Line Description

The lower horizontal axis represents the shutter speed, and the right- hand vertical axis represents the aperture value. The combinations of shutter speed and aperture value automatically determined by Program AE are shown as lines with respect to the subject brightness (Exposure Value) gradations on the left and top edges of the graph.

Example:Using an EF50mm f/1.4 USM lens with a subject brightness of EV12, the point where the diagonal line from EV12 (on the top edge) intersects the Program AE line represents the corresponding shutter speed (1/320 second) and aperture value (f/3.5) that the program sets automatically.

The diagonal arrowed lines at the upper left indicate the metering range for each ISO speeds.

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