Playing with lightning: an experiment

Last night I got the opportunity to try and capture a storm lit up by lightning. It's the first time I have tried it. Apologies for the lack of sharpness, but the combination of ISO 1600 and 10 seconds hand-held are bound to have consequences! It also needs only one big flash in the cloud, or two far apart ideally, as here; it acts like a flashgun, lighting it very briefly and so reducing movement blur. After a few tries, +5 ev seemed to be the right setting as far as exposure goes.
This is the picture that makes me realise I have to get a K5!