Definitely worth getting up early for! Catching the first rays of the rising sun, 50027 Lion passes Hinksey Yard on 7 August 1987 with the 1F01 06:28 Oxford to Paddington service. It was just as well that the exposure required for this picture on Kodachrome 64 was 1/250sec f2.8, as I had just discovered that my Canon 100mm lens was not stopping down. In all my years of using the Canon FD system this is the only instance I have come across of a lens design fault (a pity the same can't be said of the modern EF lenses, especially the notoriously unreliable 50mm f1.4!). I say design fault, as a replacement lens also suffered the same fate, so eventually I upgraded to the 100mm f2 version.