How to Add Motion to Skies in Photoshop
By Lesa Snider
A great way to add the illusion of motion to skies is to photograph them using a slow shutter speed. If the clouds are moving, they appear beautifully blurred. That can be a time-consuming and challenging project, however. Happily, you can easily simulate the effect using the Radial Blur filter in Photoshop, which is available in any version.
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