Hasselblad Extension Tube Set w/21mm and 55mm Tubes EXCELLENT - Seawood Photo
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Hasselblad Extension Tube 16E (16mm) 30 40654 B&H Photo Video
Hasselblad Extension Tubes
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Using Extension Tubes for Macro Film Photography » Shoot It With Film
Amazon.com : Fotodiox Pro Automatic Macro Extension Tube, 48mm Section - for Hasselblad XCD Mount Mirrorless Digital Cameras for Extreme Close-up Photography : Electronics
Hasselblad 64-85mm Variable Extension Tube for 500 Ser. Cat# 51691 Mint- / Free Shipping (USA) – Classic Connection – Used , New & Rare Leica Camera Store