It was a clear, cold and crisp day and the architecture of the State Capitol was stunning. I made adjustments to the camera settings for the conditions - 100 ISO; one shot AF; center weighted average metering and, as usual, aperture priority AE.
I forgot, however, that I had previously set the aperture at f/2.8 which, although two stops down from wide open, was way more than needed for the bright sunlight conditions. As a result, the camera was choosing a shutter speed of 1/4000 second when 1/500 would have been more than fast enough. I could have used an aperture of f/8 which would have resulted in a sharper image both from greater depth of field and an aperture more in the lens's "sweet spot."
All you need to do is forget one thing and the image will be less than it could have been. You can notice that the upper parts of the building, where the focus point was, is sharper than the lower portions, which are much nearer the camera. An aperture of f/5.6 or f/8 would have rendered the whole building in sharp focus, with plenty of shutter speed to spare.
It's also easy to think of distance as a two dimensional formula as in "I can focus on the building and the building will be in focus" where in actuality, the top of even a 5 story building can be twice as far away from the camera as the street level.
|Southwest tower, State Capitol, Albany, New York