Sigma 30mm DC HSM standard lens for Nikon Art DSLR F1.4 fixed-focal-length F-mount APS-C cameras.

By optimizing the lens power distribution, field curvature, a cause of performance degradation at the edges, is thoroughly corrected. High image quality is achieved even at the edges of the frame. Double-sided aspherical lenses effectively correct spherical aberration, astigmatism, and coma aberration. Point light sources at the edges of the frame are less blurred, and beautiful bokeh can be produced even at wide apertures. The internal mechanism incorporates a Hyper Sonic Motor (HSM), achieving high-speed and quiet autofocus. The AF algorithm has been improved for smoother autofocus. Full-time manual focus is also possible, allowing for fine-tuning of focus simply by rotating the focus ring after initial focusing. The super multi-layer coating reduces flare and ghosting, and enables high-contrast images even when shooting against the light. Nikon F-mount 30mm F1.4 Fixed focal length standard DSLR APS-C