Combining an aspherical extra-low dispersion element with Nano Crystal coatings, this lens delivers sharp, high-contrast images while resisting flare and ghosting. Its constant f/4 aperture and retractable design keep the build remarkably compact and lightweight at just 500g, without sacrificing full weather sealing. This is the ideal walkaround zoom for Z-mount landscape and travel photographers who prioritize optical quality in a portable package.