Fast f/1.4 Aperture Normal Range. The Sigma 30mm f/1.4 DC DN Contemporary’s focal length provides a 45mm equivalent on crop-frame Fuji X-mount cameras. The combination of a normal focal range and fast aperture makes this lens ideal for portraiture where subject-background isolation is needed and a perfect choice for low-light shooting.

High-Quality Optics. The Sigma 30mm f/1.4 packs a lot of powerful optics into a small package. Two aspherical elements help eliminate spherical aberrations and distortions, while increasing sharpness and resolution, while a high-refractive index element reduces chromatic aberrations and helps to control color fringing. A Super Multi-Layer Coating on every element minimizes lens flare and ghosting, while a nine-blade, rounded aperture provides a pleasant bokeh.

Stepping Autofocus Motor. The built-in stepping autofocus motor provides fast, accurate, and quiet operation in a wide variety of shooting situations. You can also manually override the autofocus motor at any time by rotating the focusing ring, giving you quick fine-tuning ability.