Paul Carroll has just posted a detailed review of the new Sigma 500mm f/4 DG OS HSM Sports Lens at the DxOMark. With the overall DxOMark score of 30 points tested on the EOS 5DS R, this super telephoto has excellent uniform sharpness, no distortion and well-handed chromatic aberration. Read More »
Sigma 500mm f/4 DG OS HSM Sports Lens Review (DxOMark)
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