Olympus OM-SYSTEM E.Zuiko 100mm f/2.8 MF Portrait Lens Excellent from JAPAN | eBay
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Olympus OM E. Zuiko Auto-T 100mm F/2.8 Lens | eBay
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Amazon.com : Rokinon 100mm F2.8 ED UMC Full Frame Telephoto Macro Lens for Olympus and Panasonic Micro Four Thirds Interchangeable Lens Cameras : Electronics
Zuiko 100mm lenses - Part I
Olympus Zuiko 100mm f/2.8 Manual Focus Lens for OM-Mount {49} at KEH Camera