Going to see this bike tonight, a Bianchi Campione d'Italia (c. 1995?). The owner is 'pretty sure' it has shimano components. I'm thinking the rear derailleur doesn't look right, and I'd be interested to hear what others think. Might I be looking at Ofmega or Campy?
Sorry for the fuzzy pic, but it's all I have to work with.
The RD, FD, and crankset are 1984 (or thereabouts) Ofmega - perhaps the Premier gruppo?
I'm going by Berto's The Dancing Chain in this case - he has a Premier photographed in the book, but the derailer is full-polish, not grey anodized on sections (a-la Shimano 600, Suntour Sprint 9000, Suntour Accushift Alpha X 4050, etc...)
I see what appears to be the Colarado Springs World Championship decal just above the shifters, which would make it a 1987 model, or possibly a late 1986 model. Assuming it is 1987, the spec components were SunTour Cyclone Accushift, Ofmega Competzone cranks, Modolo Start brake and Ofmega hubs mated to Ambrosio Elite 19 rims. Frame was Bianchi/Colmbus II A lower mid-range model, originally worth about $500 US.
From what I can see, the majority of components appear to match the specs. But I have to agree with Engo. The rear derailleur looks more like an Ofmega than a SunTour.