From their own description this add- on covers and magnifies the camera's LCD. It isn't an evf as we know them at all. What a stupid idea.
Does Photokina have a wooden spoon award for worst product at the show?
I thought the portability was destroyed by the lens, the viewfinder just creates a proper balance with the camera being the fulcrum. I now know why sigma has been on my don't support list for so long.
I'll only give them a chance if they ever create an actual designed for m4/3 lens instead of the rehashes they keep flogging. So much promise on theory, so much ineptitude in practice. Should be the sigma motto.