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PhotoDiary :: Editing diary entry 21
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Lensless photography on Weston Pier using a zone plate. A zone plate is a pinhole at the centre of several minute concentric rings. For a more detailed description, see the [Zone plate page](http://members.rogers.com/penate/zoneplate.html) on Guillermo Penate's website. There's an interesting diffraction flare on the "Weighing machine" image - at full resolution it appears as a series of concentric spectral rings. Obvious really.
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Sunlight on benches
Weighing machine and companions
