Or you have to expose for a long time. | Hacker News

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Sharlin on Aug 26, 2012 | parent | context | favorite | on: Flat lens offers a perfect image

Or you have to expose for a long time.

Luc on Aug 26, 2012 [–]

Or use more than one pinhole... E.g. http://pinhole.stanford.edu/zp.html

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