|Introduction | Sigma 50mm F1.4 DG HSM A Canon lens performance | Sigma 50mm F1.4 DG HSM A Canon versus Carl Zeiss Otus 1.4/55 | Conclusion|
After the success of Sigma’s premium Art-series 35mm f1.4 DG HSM A, the firm is hoping to replicate the achievement with this new model. Aimed unreservedly at enthusiasts this completely revised design has an unusually high total of 13-elements in 8 groups with three SLD (low dispersion) glass elements and one asphere.
This high-end model also adopts a floating system, which optimizes the optical performance at close range – it has a minimum focus distance of 1.3’ (40cm) making it particularly suited to a wide-range of uses – environmental portraiture, candid and general-purpose photography.
Autofocus is provided by a sonic type motor for smooth, quiet focusing, while the outer is a combination of the firm’s Thermally Stable Composite (TSC) material and metal for durability, though the firm make’s no claims for any environmental sealing
With a 77mm filter thread and measuring 3.36 x 3.93" (85.4 x 99.9mm) this model is hardly small and discrete. It’s also rather heavy at 1.79 lb (815 g), but on the plus side the price is competitive - it is available for pre-order at $949.