One source that was briefed on the new OM 150-600mm 5.0-6.3 lens told me this: 150-600mm (not a pro lens) with stabilization co-work with camera body. I believe the telephoto lens is sigma designed and manufactured from their existing full frame 150-600mm. Weight is 2+ kg. It would be disappointing if this would be EXACTLY … Continue reading Is the new OM 150-600mm 5.0-6.3 made by Sigma?