Adobe has released the first beta edition of Lightroom 4, its forthcoming photography workflow software. Numerous upgrades have been made over Lightroom 3, mainly in terms of tools; v4 sports new highlight and shadow recovery options, for instance, and a white balance brush, which can be used to tweak colors in a specific part of an image instead of the photo as a whole. Local adjustments can also be made for noise reduction and moir

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