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#binoculars #holding binoculars #viewing device #optics #equipment

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#film history #viewing device #pre-cinema #movie history #silent film era precursor

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#film mechanism #hand crank projector #viewing device #early motion pictures #film reel

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#box camera #pinhole box #viewing device #inverted picture #optics #portable camera obscura #projection screen

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#black circle telescope #literal black spyglass #dark observation #optical instrument #viewing device