Winter is my favourite time of year for photography. It may be cold and mostly gloomy but when the sun does make an appearance it is the best kind of sun. Low and warm - at least in light if not in temperature. Today I spent some time in Central London. Before the sun came out I was shooting abstracts. Late afternoon, however, as I came to Trafalgar Square the sun broke through. The sky was still quite grey - but the light was perfect for some moody black and whites.