Gentec News: Sigma’s 18-35mm F1.8 DC HSM World’s First Zoom Lens Offering Constant F1.8 Aperture
The ultra-fast, ultra-compact Sigma 18-35mm F1.8 DC HSM zoom lens is the newest addition to Sigma’s Art line, and the world’s first zoom lens to offer a constant F1.8 aperture. The larger F1.8 aper…
