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Amazon.com : Fotodiox Bayonet 50 B50-58mm Step Up Filter Adapter Ring for Hasselblad, Anodized Black Metal Filter Adapter Ring : Camera Lens Adapters : Electronics
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Amazon.com : Universal Bayonet to 37mm Thread Adapter for Moment Lenses and DREAMGRIP, Other rigs with Standard 37mm Lens Thread : Electronics
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Amazon.com : Universal Bayonet to 37mm Thread Adapter for Moment Lenses and DREAMGRIP, Other rigs with Standard 37mm Lens Thread : Electronics
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