Micro four third rumours has posted a patent application from Olympus for a focal reducer x0.5. If its decent quality it would be perfect for video users but just wondering about the still side of things. Anyone tried anything like this before? I have seen cheap chinese optical adapters to convert Pentax lenses to Nikon mount which seem to work well enough. Remember this is just rumour at the minute but looks interesting. What else can you think of that would be of interest in the adapter space for 35mm lenses? I know Tilt Shift adapters are making use of the space. This patent would be likely for OM lenses and not four thirds I assume. Maybe also other brands of 35mm lenses.