Claystone pebbles
Typical claystone pebbles - essentially mud balls that were rolled by the river current. Getting an idea of the size distribution of these pebbles might say something about the speed of the river’s flow, a task for a later date.
Photo Information
- Taken with Apple iPhone SE (2nd generation)
- Focal Length 4 mm
- Exposure Time 1/120
- f Aperture f/1.8
- ISO Speed 50
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