convertimate Film speed

DIN degrees to stops from ISO 100

Type a value in °DIN to get it in stops instantly.

125.9stops

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.

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 stops

DIN is logarithmic and ISO is not: DIN = 10 × log₁₀(ISO) + 1, so every doubling of ISO adds three DIN degrees.

Example: 400 °DIN = 125.901 stops.

Every unit

Your speed in every unit

Tables

°DIN to stops conversion table

°DIN to stops conversion table
°DINstops
15 °DIN-1.99316 stops
18 °DIN-0.996578 stops
21 °DIN0 stops
24 °DIN0.996578 stops
27 °DIN1.99316 stops
30 °DIN2.98974 stops
33 °DIN3.98631 stops
36.1 °DIN5.01611 stops
39.1 °DIN6.01269 stops
42.1 °DIN7.00927 stops
stops to °DIN conversion table
stops to °DIN conversion table
stops°DIN
-2 stops14.9794 °DIN
-1 stops17.9897 °DIN
0 stops21 °DIN
1 stops24.0103 °DIN
2 stops27.0206 °DIN
3 stops30.0309 °DIN
4 stops33.0412 °DIN
5 stops36.0515 °DIN
6 stops39.0618 °DIN
7 stops42.0721 °DIN

Quick answers

Quick answers

How many stops is 1 °DIN?
1 °DIN is -6.64386 stops.
How many stops is 10 °DIN?
10 °DIN is -3.65412 stops.
How many stops is 400 °DIN?
400 °DIN is 125.901 stops.

The units

About these units

DIN degrees (°DIN)

The German logarithmic scale: three degrees to a stop.

Stops from ISO 100 (stops)

How many doublings away from ISO 100 the speed is.

Learn more about speed units

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