Meike 8mm F2.8 Ultra Wide Angle Zero Distortion Manual Focus Lens Comp — Meike Global
TTArtisan 17mm F1.4 APS-C Manual Focus Wide-Angle Large Aperture Cameras Lens Compatible with Olympus M43 Mount Camera, Panasonic M43-Mount M43 Mount M4/3 Mount Camera - Walmart.com
Amazon.com : Rokinon 16M-M43 16mm f/2.0 Aspherical Wide Angle Lens for Olympus/Panasonic Micro 4/3 Cameras : Compact System Camera Lenses : Electronics
Best lenses for Micro Four Thirds: Digital Photography Review
Go Wide! A look at four top ultra-wide primes for Micro Four Thirds: Digital Photography Review