Dustin Abbott has just tested the new released Sigma 105mm F1.4 DG Art lens (Amazon/ B&H/ Adorama) on Canon EOS 5D Mark IV and posted a full review at the dustinabbott.net. It is a professional portrait lens with many Pros: High grade build with Sport level… Read moreSigma 105mm f/1.4 DG HSM Art Lens Review (Dustin Abbott)