The Sigma 17-40mm f/1.8 DC Art Lens, a pioneering zoom lens for APS-C mirrorless cameras, boasts a constant f/1.8 aperture across its entire zoom range, marrying prime-like optical excellence with video-friendly attributes. Its construction, featuring 17 elements in 11 groups - inclusive of four aspherical and four Special Low Dispersion elements - mitigates flare, ghosting, and aberrations, yielding exceptional sharpness and smooth bokeh courtesy of its 11-blade rounded diaphragm. The lens offers a minimum focusing distance of 11 inches and a maximum magnification ratio of 1:4.8, providing excellent versatility for close-up and wide-angle photography.
The Sigma 17-40mm f/1.8 DC Art Lens for Fujifilm X is a pioneering zoom lens that offers prime-like optical excellence with video-friendly attributes. Its intricate construction mitigates flare, ghosting, and aberrations, yielding exceptional sharpness and smooth bokeh. With a constant f/1.8 aperture across its entire zoom range and a high-speed linear actuator autofocus, this lens is a versatile and indispensable tool for both photography and videography.