It's just the usual full-auto macro mode. I think the reason this one worked is that the stamens gave the autofocus something to lock on; it doesn't like smooth shiny surfaces if there's something sharp -- like prickles -- in the vicinity.
White flowers are tricky -- I think part of the trouble is that they're often brighter to the camera than to the human eye, because of the UV, and very easy to overexpose. Sometimes it works better to go for shade rather than full sun; I suppose you could try cutting down the exposure time, if your camera lets you do that, or using a UV filter if that's possible.
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Reading, writing, plant photography, and the small details of my life, with digressions into science and computing.
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Date: 2007-04-11 03:41 am (UTC)White flowers are tricky -- I think part of the trouble is that they're often brighter to the camera than to the human eye, because of the UV, and very easy to overexpose. Sometimes it works better to go for shade rather than full sun; I suppose you could try cutting down the exposure time, if your camera lets you do that, or using a UV filter if that's possible.