|Introduction | Sigma 35mm F1.4 DG HSM A Sony mounted on Sony SLT Alpha 99 | Sigma 35mm F1.4 DG HSM A Sony Versus Sony 35mm F1.4 G both mounted on Sony SLT Alpha 99 | Conclusion|
Revamped six years ago, the Sony 35mm f1.4 equivalent is based on an earlier, film era Minolta design. Although the firm introduced the lens with little fan-fare, it’s thought, besides the revising of the exterior, Sony updated the glass to lead-free types and improved lens coatings.
Against the brand new Sigma the aging design of the Sony reflects in the scores. Overall, the Sigma achieves an outstanding DxOMark score and a very high score for Sharpness; 17P-Mpix vs. 11-P-Mpix for the Sony. Not only that, but the Sigma is a 1/3 Stop faster in Transmission, has +1/2 stop less vignetting at full-aperture and has superior control of chromatic aberration with digital sensors. And, as an extra incentive, the Sigma is far better value at $899, against a hefty $1,499 for the Sony.