An untouched macro photograph of a very brightly coloured Rose caught using a Canon 450D:
Exposure time: 1/500 sec.
ISO speed: ISO-100
Exposure bias: 0 step
Focal length: 250 mm [ on a 55-250 mm lens ]
It was a little breezy for a tripod and a slow shutter speed [ and flowers a few days old deteriorate quickly ], so I opted for hand held and a fast shutter speed.