Manny Ortiz has in contrast the brand new Sony FE 135mm f/1.8 GM lens (B&H Photo/Adorama/Amazon) with Sigma 135mm f/1.Eight DG HSM Art Lens (B&H Photo/Adorama/Amazon). From the comparability, we will see in low mild situation, Sony FE 135mm f/1.Eight GM lens is significantly better than Sigma 135mm f/1.Eight DG HSM Art Lens.