The Sigma 30mm F1.4 EX DC HSM is a prime lens designed specifically for Nikon F mount cameras, particularly suited for DX-format sensors. This lens stands out as a versatile option for photographers looking for a fast aperture lens that excels in low-light conditions and provides beautiful background blur, perfect for portraits, street photography, and general use.
The build quality of the Sigma 30mm F1.4 is impressive, featuring a robust, all-plastic construction that feels solid in hand. The lens has a smooth, matte black finish that not only looks appealing but also helps reduce glare. The focusing ring is well textured and offers a comfortable grip, allowing for precise manual focus adjustments when needed. However, the lens is relatively bulky compared to other options in this focal length range, which could be a drawback for those seeking a lightweight kit.
With a maximum aperture of F1.4, the Sigma lens delivers excellent optical performance, especially in low-light situations. The sharpness is remarkable even at the widest aperture, with images remaining crisp and clear. As you stop down the aperture, the sharpness improves even further, making it an ideal choice for landscape and architectural photography as well.
Color rendition is another strong point of this lens, producing vivid and contrast-rich images. However, there is noticeable vignetting at F1.4, which can be desirable for some styles but may require correction in post-processing for others. Additionally, the lens handles chromatic aberration quite well, producing minimal color fringing even in high-contrast scenes.
The Hyper Sonic Motor (HSM) provides fast and quiet autofocus, which is impressive for both photography and video applications. It can achieve focus quickly, making it suitable for capturing spontaneous moments. However, some users have reported occasional misfocus in low-contrast situations, which could lead to missed shots, especially when shooting in challenging lighting conditions. Although it offers manual focus override, the autofocus may require fine-tuning for perfect reliability.
Overall, the Sigma 30mm F1.4 EX DC HSM is a fantastic lens that offers superb performance for its price point. With its fast aperture, sharpness, and excellent build quality, it is a worthy addition to any Nikon F (DX) photographer's kit. While it has some minor drawbacks, such as vignetting and occasional autofocus issues, its strengths significantly outweigh these concerns, making it a great choice for both amateur and professional photographers alike.