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Continue to Chathttps://www.diyphotography.net/canon-patents-zoom-lenses-that-get-shorter-as-they-get-longer/ Canon patents zoom lenses that get shorter as they get longer
https://www.diyphotography.net/canon-patents-zoom-lenses-that-get-shorter-as-they-get-longer/ Canon patents zoom lenses that get shorter as they get longer