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SAND MARTIN Riparia riparia All images copyright © Rein Hofman |
| Nikon D300S + Sigma 300-800mm: Focal length 800mm, 1/250 sec - 1/3 @ f 5.6, ISO 400 Groningen 10/05/10 |
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| Nikon D300S + Sigma 300-800mm: Focal length 800mm, 1/250 sec - 1/3 @ f 5.6, ISO 400 Groningen 10/05/10 |
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