Torthaí cuardaigh - "Lenses"
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A history of the photographic lens /
Foilsithe / Cruthaithe 1989Ábhair: “…Photographic lenses…”
LEABHAR -
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The adjustment and testing of telescope objectives /
Foilsithe / Cruthaithe 1983Ábhair: “…Lenses Design and construction.…”
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