sigma shots
by Mike Bauer
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Sigma 50-500mm F/4.0-6.3 Lens Test on Canon 1D
by Mike Lang
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Sigma 28 to 200 with K20d, Missouri Botanical Garden
by edmund j. kowalski
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Sigma AF 80-400mm f/4.5-5.6 EX APO OS
by Savvas Sidiropoulos
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Boomklever - Nuthatch
by Richard Diepstraten
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Sigma 10-20mm
by Pam Haley - FrogHouse Photo
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Roerdomp - Bittern II
by Richard Diepstraten
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Hugh Thomson Galleries
by Hugh Thomson
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Sigma 17-70 vs Nikkor 35-70
by Miljenko Devcic
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Tomioka 55mm f1.2
by Bob Dodds
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