Buttercups

Down by the River Cam near Fen Ditton, the meadows are full of buttercups.

I wanted the nearest buttercups in focus, and I wanted the sky in focus. To get maximum depth of focus, I needed a wide angle, and a narrow (high number) aperture.

Canon 60D with Canon EF-S 18-200mm at 18mm, 1/60 sec at f/22, ISO 320