Paul Carroll has just posted a detailed review of the Tokina AT-X 24-70mm f/2.8 PRO FX Lens (for Canon) at the DxOMark.com. Achieving the highest DxOMark overall score of 32 points tested on Canon EOS 5DS R, Tokina 24-70mm f/2.8 PRO lens ranks in joint second place overall… Read moreTokina AT-X 24-70mm f/2.8 PRO FX for Canon Review (DxOMark)