Sigma SIGMA Nikon F mount mount lens 30mm DC HSM single focus standard Art SLR only F1.4 APS-C

The lens power arrangement has been optimized to thoroughly correct field curvature, which causes performance degradation at the periphery. Demonstrates high depiction performance all the way to the edges of the screen. Adoption of double-sided aspherical lenses effectively corrects spherical aberration, astigmatism, and coma aberration. There is little blurring from point light sources at the periphery of the screen, and it is possible to create beautiful bokeh near the maximum aperture. The internal mechanism is equipped with an ultrasonic motor HSM (Hyper Sonic Motor) to achieve faster AF speed and quieter operation. Improved AF algorithm for smoother AF. Full-time manual mode allows you to fine-tune the focus by simply turning the focus ring after focusing. Adoption of a super multi-layer coating reduces the occurrence of flare and ghosting, and achieves high contrast depiction even when shooting against backlight. Nikon F mount 30mm F1.4 single focus standard SLR APS-C