Exposure Program

The exposure program for programmed auto is shown in the following graph:

F (lens focal length) 55 mm 55mm < F 135 mm

135 mm < F

Aperture

f1

f1.4

f2

f2.8

f4

f5.6

f8

f11

f16

f22

f32

f1.4 − f22

Shutter speed

The maximum and minimum values for EV vary with ISO sensitivity; the above graph assumes an ISO sensitivity of ISO 200 equivalent. When matrix metering is used, values over 171/3 EV are reduced to 171/3 EV.

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