Sigma TC-1401 1.4X Teleconverter for Canon EF by Sigma at B&C Camera
New OLYMPUS M.Zuiko Digital MC-14 1.4x Teleconverter Micro Four Thirds Mount | eBay
Olympus introduces 2X teleconverter, updates Micro Four Thirds roadmap: Digital Photography Review
Olympus 1.4x Teleconverter with Panasonic Leica 100-400mm - YouTube
Panasonic LUMIX Micro Four Thirds 1.4x Teleconverter DMW-TC14 | Wex Photo Video
Amazon.com : OM SYSTEM OLYMPUS M.Zuiko Digital ED 40-150mm F2.8 PRO For Micro Four Thirds System Camera, Light weight powerful zoom, Weather Sealed Design, MF Clutch, Compatible with Teleconverter : Electronics
Amazon.com : OM System M.Zuiko Digital ED 90mm F3.5 Macro is PRO for Micro Four Thirds System Camera, Weather Sealed Design, MF Clutch, Fluorine Coating, Compatible with Teleconverter : Electronics