Hi, Any people here that use or used a Linhof Kardan ST-E? I am planning to have a look at one soon, has a Schneider Kreuznach APO-SYMMAR Multicoating 210 mm/5.6 (Copal 1) new lens. I want to use it for portraits mainly on 4x5", no architecture. Things I need to have a closer look on when I go check it out, besides basic stuff like bellows. Any known problems with this Linhof? Thanks.