For nearly 80 years, motorists have paid a tax every time they put gas in their cars. What if they were taxed based on how far they drive instead? . More at USA Today http://www.usatoday.com/news/washington/2011-05-13-gas-mileage-tax_n. ...

Has anyone tried using the multiple mask technique to expand dept of field rather than (or in addition to) dynamic range? Might have to soften the edge of the mask but in principle it should work, using one photo set to near focus and the other to infinity.

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