No expert, but it is a nice image of an area with lots of variation.
Found this an intersting discussion
Quote:
http://www.fxguide.com/forums/showth...some-questions
"the bonus of float is that you can have a value of 50, which would be 50 times as bright as white, in a similar way to the sun being brighter than anything else, yet will only ever be displayed as white in a daylight photo. The advantage here is you can move the brightness of the image around without killing the overall light values, so you change the exposure in a way similar to a camera"
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