Olympus E-PL1 with 9-18mm and SEMA-1 mic kit - YouTube
Olympus SEMA-1 Microphone Set for PEN E-P2, E-PL1 (Includes EMA-1 Adapter, ME-51S Microphone) at KEH Camera
Olympus Pen E-P2 (Digitalkamera) Test | CHIP
Amazon.com: Digital Camera External Microphone Compatible with Olympus Pen E-PL9 Mirrorless Digital Camera, XM-AD2 Dual Channel XLR-Mini Audio Adapter for DSLR's, Camcorders and Pro Video Cameras : Electronics
Test: Olympus Pen E-P7 + ED 14‑42 EZ | Stiftung Warentest