Lens barrel definitions

Lens barrel

A metal or plastic tube with a blackened inner surface, in which the lens elements and mechanical components of the lens are mounted
Found on http://www.encyclo.co.uk/local/21048

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Lens barrel

A metal or plastic tube with a blackened inner surface, in which the lens elements and mechanical components of the lens are mounted.
Found on http://www.rodsmith.org.uk/photographic%20glossary/rods%20photographic%20gl

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