The Sigma 50mm F1.2 DG DN | Art lens for Sony E mount is an impressive addition to Sigma's Art series, designed for those who demand exceptional optical performance and build quality. This lens is a versatile prime, ideal for portrait, landscape, and low-light photography, providing a perfect blend of sharpness, bokeh, and overall image quality.
Sigma has a reputation for well-constructed lenses, and the 50mm F1.2 DG DN | Art is no exception. Constructed from high-quality materials, it feels sturdy in hand while still being manageable due to its relatively compact size for a fast 50mm. The weather-sealed design is a significant plus, allowing for use in various environmental conditions without fear of damaging the lens. The focus ring operates smoothly, providing precise control, which is particularly beneficial for manual focusing.
The optical performance of this lens is truly remarkable. With a maximum aperture of F1.2, it excels in low-light situations, producing bright images with excellent detail. The lens features multiple special elements that help combat chromatic aberrations and distortions, leading to sharp images across the frame. At wider apertures, the bokeh produced by the rounded nine-blade diaphragm is smooth and creamy, making it a fantastic choice for isolating subjects in portrait photography.
However, like many fast aperture lenses, you may notice some softness at F1.2, especially when shooting wide open. Once you stop it down to F1.4 or F1.8, the sharpness improves significantly, making it much more usable for critical applications.
The autofocus system on the Sigma 50mm F1.2 DG DN is quick and accurate, thanks to its advanced stepping motor. It performs admirably in various lighting conditions, tracking subjects reliably for both stills and video work. However, some users may find it less quiet compared to other options on the market; while it's not overly noisy, it's worth noting for those who prioritize silent operation in their shooting scenarios.
Overall, the Sigma 50mm F1.2 DG DN | Art lens is a stellar choice for photographers seeking a high-performance prime lens for their Sony E mount cameras. While it has some minor drawbacks, such as a touch of softness wide open and a less-than-silent autofocus system, the benefits far outweigh these concerns. From its excellent build quality to its outstanding optical performance, it stands as a strong contender in the fast 50mm category, making it a worthy investment for both amateur and professional photographers alike.