Aperture Calculator
f/v1.0
f/5.6
f/1.0
f/2.8
f/5.6
f/11
f/22
1/125
1/4000
1/250
1/60
1/8
1″
30″
ISO 400
100
200
400
800
1600
3200
6400
12800
Exposure Value
+0.0
Depth of Field
Medium
Light Gathering
Moderate
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Aperture Effects
Wide
Medium
Narrow
Very Narrow
Depth of Field
Medium
Best For
General
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Formula
EV = log₂(N² / t) − log₂(ISO / 100)
N = f‑number | t = shutter time (s)
Aperture controls depth of field & light
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Aperture Guide
- 1 Wide (f/1.4–f/2.8): Shallow DOF, low light
- 2 Medium (f/4–f/8): Balanced, sharp images
- 3 Narrow (f/11–f/16): Deep DOF, landscapes
- 4 Very Narrow (f/22+): Maximum DOF, diffraction