First, Henry Moore's statue from a distance of several hundred yards, and a helicopter that I think took off from the hospital in Praed Street
Six views of the Albert Memorial with the 500mm lens
And the Albert Memorial and Albert Hall with the 12mm LensBaby lens and a 17-55mm zoom
Bottom line, I'm very pleased with the performance of the 500mm lens; it's a pig to lug around (being that it's half a metre long with hood and weighs several pounds) and has to be manually operated, but once you get exposure right the results are excellent compared to my previous mirror lens, especially when it's stopped down a bit. The 12mm fisheye is fun but I'm really not sure I need it - I could get similar results by putting a fisheye converter onto the short zoom and it would be a lot cheaper, and a lot less hit and miss since exposure would be automatic. I think I'm going to play with it some more but probably sell it on eventually. More important, I had a good walk on a lovely (albeit cold) day, and a nice Japanese meal near South Kensington Station. I think it was a day well spent.