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Canon 100mm f2.8 USM or Sigma 105mm f2.8 OS HSM macro lens?: Third Party Lens Talk Forum: Digital Photography Review
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Sigma Photo 105mm f/2.8 Macro Lens (Canon mount) Light-gathering telephoto macro lens for full-frame and APS-C cameras at Crutchfield
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BARGAIN PRICED SIGMA 100MM F2.8 MACRO FOR CANON...DG, EX, HSM,OS - photo/video - by owner - electronics sale -...
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Amazon.com : Sigma 105mm f/2.8 EX DG Medium Telephoto Macro Lens for Canon SLR Cameras : Camera Lenses : Electronics
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RUMOR: New Sigma 105mm f/2.8 ART FE lens will be announced by end of of the month! – sonyalpharumors
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