Image: ExtensionTube5733
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Description: Extension tubes for SLR camera lenses. An extension tube attaches to the body of a single-lens reflex camera; the lens attaches to the tube. Extension tubes come in various lengths and contain no glass (as the pen indicates). These use bayonet-type lens mounts.
Title: ExtensionTube5733
Credit: Own work
Author: User:Fg2
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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