Set Perfect White-Balance With Starbucks Coffee-Cup Lid

How do you achieve the correct white-balance for your photos? Do you leave the camera on auto, like me, and fix things up later with RAW processing software if you need to? Or do you use the $70 Expodisc, a painstakingly calibrated piece of white plastic which fits over the lens and smushes together all [...]

Source: http://www.wired.com/gadgetlab/2010/11/set-perfect-white-balance-with-starbucks-coffee-cup-lid/

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