Self portrait with Zuiko OM 55/1.2 on Sony A7ii - set at either f1.2 or f2.8, probably f2.8. Light is only 60w anglepoise reading lamp shining through bedroom door into dark hall to illuminate my left hand side. Lens seems very good. http://www.gallery.leica-users.org/v/DouglasBray/Port_22032017_DB3.jpg.html Douglas