File:First-order lens from Destruction Island WA.jpg

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English: First-order lens from Destruction Island WA, built in France 1888, operated 1891-1995. Currently at Westport Maritime Museum.
Date
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Author Byrnstar

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inception

5 May 2013

exposure time

0.03333333333333333333 second

focal length

5.2 millimetre

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image/jpeg

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Date/TimeThumbnailDimensionsUserComment
current03:21, 30 January 2023Thumbnail for version as of 03:21, 30 January 20233,000 × 4,000 (2.22 MB)ByrnstarUploaded while editing "Fresnel lens" on en.wikipedia.org
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