Exposure Program - Nikon D90 User Manual

Exposure Program

The exposure program for programmed auto is shown in the following graph:
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,
1
values over 17 / EV are reduced to 17
3
F (lens focal length) ≤ 55 mm
55mm < F ≤ 135 mm
135 mm < F
f1
f1.4
f2
f2.8
f4
f5.6
f8
f11
f16
f22
f32
Shutter speed
1
/ EV.
3
n
263