Testing Testing
experiments with photography and other toys. Images Across The Earth focuses on beauty, not technology.

Friday, November 16, 2007

Depth of Field

Back on the topic of the Nikkor 18 - 200, here's a shot showing depth of field at extended zoom:



F 5.6 ... 200 mm ... 1/60 sec

These are the same shot. The first image has been compressed to save bytes. The second image is a crop; if you click on it you will see it at 100% relative to the original.

This shot was taken on a windy day - I missed the moment when the leaf was fully vertical but am nonetheless impressed by the lens's auto-focus working with the moving target.

Having used the lens for a couple of months now, I really like the large aperture bokeh at extended zoom, though the narrow depth of field does require precise attention to focus, as the following shots show:


F 5.6 ... 120 mm ... 1/160 sec

Despite the shorter zoom, the area of sharpest focus is at the intersection of bricks between the leaves. Ho hum... boring.


F 5.6 ... 200 mm ... 1/200 sec

This time the leaf is in focus and the brick blurs slightly. Once again an uncompressed crop to show the detail at 100%.