I was running some tests with my OM-D and a Tamron 500mm mirror lens, with and without the Tamron 140F teleconverter (700mm), and I ran into a problem that I think is the fault of the OM-D. For some reason I am getting a sharper image on the rear screen of the camera during manual focusing than in the captured photographs. The distortion seems to take the form of a double image "ghost" in addition to some ordinary blurriness, making me wonder if motion is involved, but I am using the cable release and have anti-shock set to 4 seconds (later increased to 15s, didn't help). The tripod is rock solid (it was designed for astronomy) and I have it sitting on some vibration absorbing pads. I am using a telescope clamp to grab the mirror lens, as I figured that made more sense than dangling the adapter, lens, and teleconverter off of the front of the camera. I have turned image stabilization off (turning it back on didn't help). I am using ISO 200, shutter speeds of 50 and 100, and manual focus. My test target was some fine print text illuminated with an LED flashlight, but I ultimately want to use this setup for moonshots and extreme telephoto wildlife photography. What might I be doing wrong? On a hunch, I tried shooting video with the digital 2x teleconverter, and the paused video is sharper than my captured stills. So, the OM-D can capture a sharp image with this lens, but it won't during still photography. This leads me to suspect motion of some sort, but I don't know what to do about it. Has anyone managed to take pictures using the OM-D at focal lengths greater than 400mm?