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Compare Matthews Junior Boom 5.6-10' vs Avenger D650 Junior Boom Arm with Counterweight Chrome-plated vs Manfrotto 425B Mega Boom 12' vs Kupo Big Boom with Four-Way Geared Control
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Handle for Avenger D650 counterweight: Studio and Lighting Technique Forum: Digital Photography Review
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Amazon.com : Avenger D650 Junior Boom Arm with Counterweight : Photographic Light Booms : Electronics
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