I am planing a trip to Europe next year, most likely Prague. I'd like to get something better than my 16+UWA. 10-18 is probably out of the question, and I am not yet sure about Rokinon. I was thinking of perhaps getting a focal reducer and bringing my Kiron 28/2. It's a superbly sharp lens. However, all focal reducers I found so far seem to be .72, which would make it a 20mm lens. I think that's going to be too narrow for these European streets ? Are there any decent reducers with bigger reduction ratios ?