Big Ben and houses of parliament Depth of Field being used creatively - I feel this gives a much better effect than having shot the image with a smaller aperture which would give a bigger focus in the image (so Big Ben in the background would have been in focus too).
Autumn tree: I like the angle of this shot because it enhances the trees large size. Additionally I like the shallow depth of field, focussing the lower leaf yet enhancing its colour with the out of focus background.
Download your free cheat sheet to help you get off AUTO and start getting more creative photos with your Digital Camera. IT shows you how you can control Depth of Field. It shows the best Aperture for Portraits and the best Aperture for Landscape photos. It also looks at another key factor in controlling Depth of Field: Focusing Distance.: