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Kit lens replacement - Pentax/Sigma 17-70 or Pentax 16-85: Pentax SLR Talk Forum: Digital Photography Review
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Kit lens replacement - Pentax/Sigma 17-70 or Pentax 16-85: Pentax SLR Talk Forum: Digital Photography Review
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HD Pentax DA 16-85mm F3.5-5.6 ED DC WR vs Sigma 17-70mm F2.8-4 DC MACRO OS HSM C Detailed Lens Comparison
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