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That's a normal-sized tyre on the ground. The gap in the distance through which the light shines is quite large enough to walk.
Original Date-Time: 2015-03-20T15:22:26
Exposure Programme: Aperture priority
Exposure Time: 1/60 s
Aperture F/number: F7.1
Focal Length: 18.0 mm
Camera Make: SONY
Metering Mode: Multi-segment
Camera Model: NEX-7
Date/Time Digitized: 2015-03-20T15:22:26
Exposure Mode: Auto bracket
ISO sensitivity: 1250