Originally posted by Adam Both star and limited lenses are premium from an optical standpoint. Limited lenses sacrifice speed and perhaps some image quality for smaller size. Star lenses, on the other hand, prioritize large aperture and features such as the latest technology and All Weather sealing (dust+moisture, not just moisture).
So from that perspective, I would compare star lenses to L lenses, and leave Limiteds in a class of their own.
Right so! If anything, Pentax limiteds correspond to Carl Zeiss ZK (ZE for Canon) lenses in build quality and optics....but Pentax have autofocus!