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Sigma 1000mm F8 APO Launched September 1988, February 1989/1992 – Sigma UK
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Sigma 1000mm F8 APO Launched September 1988, February 1989/1992 – Sigma UK
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Sigma MF 1000mm F/13.5 Mirror | LENS-DB.COM
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Sigma APO 200-500mm F2.8/400-1000mm EX DG Lens - Canon Mount
