3 Aspherical, 2 Extra low Dispersion, 2 Super ED, 2 High Refractive index, 1 Super HR
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With an impressive 24-400mm-equivalent focal length range, the 16.67x zoom lens can perform well at many different types of photography. The lens may not be fast in terms of its maximum aperture, but during my hands-on time with it, it proved to offer reliable autofocus and pretty good image quality.
Pros: huge 24-400mm equivalent range offers huge compositional flexibility; good for close-ups; fast, silent and accurate AF (at least in good light) [...]. Cons: not particularly sharp, especially at telephoto, autofocus can be hesitant in low light; unsuitable for use on Panasonic Lumix G bodies that lack in-body stabilisation.