Crystal lens
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Model E5700
FNumber f3.1
DateTimeOriginal 2003:11:02 18:20:47
ISOSpeedRatings 200
FocalLength 54mm (35mm equivalent)
Flash None (16)
ExposureTime 1/53s

The lens of the lighthouse is made of over 1000 individual pieces of crystal, arranged in 24 columns. As it rotated, the lighthouse would give a characteristic 5-second flash. The light that you see is a modern electric bulb.
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