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Sigma DP2 Quattro with Variable ND Filter
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Ricoh GR vs Sigma DP2 Quattro (Size comparison)
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Boston Kenmore Square/Fenway with Sigma DP2 Quattro
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Boston Downtown Crossing with Sigma DP2 Quattro
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Boston, Ring Fountain with Sigma DP2 Quattro
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Boston, Long Wharf with Sigma DP2 Quattro