DIN degrees to ISO
Type a value in °DIN to get it in ISO instantly.
7.943×10³⁹ISO
That's 310,284,466,689,171,470,000,000,000,000,000,000× as fast as an extreme low-light setting — nothing on our list beats it. That is 125.9 stops from ISO 100.
Convert the other way: ISO to °DIN
What it means
How sensitive is that?
Digital cameras quote an ISO-equivalent sensitivity. Above the base ISO the sensor is not more sensitive, only amplified — which is where the noise comes from.
The math
How to convert °DIN to ISO
DIN is logarithmic and ISO is not: DIN = 10 × log₁₀(ISO) + 1, so every doubling of ISO adds three DIN degrees.
Example: 400 °DIN = 7.943×10³⁹ ISO.
Every unit
Your speed in every unit
Tables
°DIN to ISO conversion table
| °DIN | ISO |
|---|---|
| 15 °DIN | 25.1189 ISO |
| 18 °DIN | 50.1187 ISO |
| 21 °DIN | 100 ISO |
| 24 °DIN | 199.526 ISO |
| 27 °DIN | 398.107 ISO |
| 30 °DIN | 794.328 ISO |
| 33 °DIN | 1,584.89 ISO |
| 36.1 °DIN | 3,235.94 ISO |
| 39.1 °DIN | 6,456.54 ISO |
| 42.1 °DIN | 12,882.5 ISO |
ISO to °DIN conversion table
| ISO | °DIN |
|---|---|
| 25 ISO | 14.9794 °DIN |
| 50 ISO | 17.9897 °DIN |
| 100 ISO | 21 °DIN |
| 200 ISO | 24.0103 °DIN |
| 400 ISO | 27.0206 °DIN |
| 800 ISO | 30.0309 °DIN |
| 1,600 ISO | 33.0412 °DIN |
| 3,200 ISO | 36.0515 °DIN |
| 6,400 ISO | 39.0618 °DIN |
| 12,800 ISO | 42.0721 °DIN |
Quick answers
Quick answers
- How many ISO is 1 °DIN?
- 1 °DIN is 1 ISO.
- How many ISO is 10 °DIN?
- 10 °DIN is 7.94328 ISO.
- How many ISO is 400 °DIN?
- 400 °DIN is 7.943×10³⁹ ISO.
The units
About these units
DIN degrees (°DIN)
The German logarithmic scale: three degrees to a stop.
ISO (ISO)
The modern arithmetic speed, the number on the box.
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