Minolta X-1
The Minolta X-1 (XK in North America, XM in Europe and elsewhere) was the professional model in the Minolta line-up. It took about ten years to develop and started a new era in the Minolta SR system. It was the first Minolta SLR with interchangeable lenses to have an electronically controlled shutter, a horizontically traveling shutter with titanium foil curtains and capable of a shortest speed of 1/2000s (longest selectable was 16 s). It had interchangeable finders: And the photographer had the choice among nine (later eleven) interchangeable focussing screens. It further had a socket for a  synchronised flash shoe, mirror lock up feature, stop down lever, multi-exposure capability. The X-1 was the first of the X-series and so a completely new designed lens line was introduced and labelled with 'MC Rokkor-X' in the North American market (the rest of the world kept the plain 'MC Rokkor' designation). The most striking attribute was the new waffled rubber coating of the focus grip. The X-1 and its export descendants were available in black finish only.