Ladybird in the sun

Hippodamia sp. Ladybird beetle

Tucson, Arizona

Photo details: Canon 100mm f2.8 macro lens on a Canon EOS 20D

ISO 100, f4.5, 1/320 sec, ambient light

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This photo was a while ago now, but as I recall the shutter speed was more a function of light levels. I wanted the blurred-out backdrop of a large aperture, and 1/320 was the shutter speed under the full-sun conditions that gave a proper exposure.

As I've gotten better at photography, I've learned to structure more of my shots more around aperture than shutter speed.