<Table> <Tr> <Td> Replica images of an annular solar eclipse . </Td> </Tr> </Table> <Tr> <Td> Replica images of an annular solar eclipse . </Td> </Tr> <P> A pinhole camera effect can sometimes occur naturally . Small "pinholes" formed by tree leaves will create replica images of the sun on flat surfaces . During an eclipse, this produces small crescents in the case of a partial eclipse, or hollow rings in the case of an annular eclipse . </P>

Where do you find a natural pinhole camera