On 2011-04-05 18:21 , Mark Roberts wrote:
Non-Lightroom compatible, but here it is:
http://www.robertstech.com/blog/?p=222

interesting technique, and thanks for sharing, but it doesn't seem intuitive that spherical aberration alone can describe soft focus

a thought experiment: if you aimed a soft-focus lens at just the right concave surface, would everything be sharp? i think there'd still be more going on

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