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.
“Super-sharp shooter,” conclusion from DxOMark, ” Sigma’s third-party 500mm f/4 gives photographers an alternative to Canon’s own-brand option….The Sigma 500mm f/4 comes equipped with the advanced features the pros demand to enhance performance, including a focus limiter, focus recall buttons, image stabilizer, large lens hood and tripod collar for mounting to a monopod and quickly switching between vertical and horizontal shooting positions…”
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