ISO Calculator
ISO v1.0
ISO 400
100
200
400
800
1600
3200
6400
12800
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″
Exposure Value
+0.0
Noise Level
Low
Image Quality
Excellent
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ISO Performance
Low
Medium
High
Extreme
Dynamic Range
12.4 EV
Signal-to-Noise
45.2 dB
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Formula
EV = log₂(N² / t) − log₂(ISO / 100)
N = f‑number | t = shutter time (s)
ISO Sensitivity affects exposure & noise
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ISO Guide
- 1 Low ISO (100-400): Bright conditions, minimal noise
- 2 Medium ISO (800-1600): Overcast or indoor lighting
- 3 High ISO (3200+): Low light, motion freeze
- 4 Higher ISO increases noise but enables faster shutter