I snapped this on Princes street in Edinburgh yesterday.
For those who are interested in the techincal details – I used a Panasonic GF1 with Olympus 45mm lens at 1/320 second and f2.8.
I am still trying to find the sweet spot for this lens.
A larger aperture would allow me to shoot at a faster shutter speed for a given ISO. On the other hand, a larger aperture means the chance that the front-to-back sharp area would be so shallow that it would be easy to get the focus wrong when taking a quick shot on the street.
The aperture I used for this shot – f2.8 – is two stops narrower than the maximum aperture of this lens, and it seems to be working OK.