Underwater Photography Settings Calculator

Get recommended camera exposure settings for underwater photography based on depth, visibility, ambient light, strobe use, and subject distance.

Depth (m)

Visibility

Surface light

Using strobe?

Subject distance (m)

ISO setting

Tab to move between fields

Aperture (f/stop)

Shutter speed (1/x)

125

ISO200

Stops of light lost1.8

Needs colour filter?0

WB warm shift (K)0

Backscatter risk (0-2)0

How to Use This Calculator

Enter the dive depth in meters where you will be shooting.
Select visibility level: low, moderate, or excellent — water clarity affects available light.
Choose the surface light conditions: overcast, partly cloudy, or sunny.
Indicate whether you are using an underwater strobe or shooting ambient light only.
Enter your subject distance in meters — strobes are most effective within 1–2 m.
Read Recommended Aperture and Shutter Speed as a starting point, then bracket exposures on your first dive to fine-tune.

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