1 dual super aspherical, 3 aspherical, 5 extra low dispersion, 2 super high refractive, 1 high refractive
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It is a solid option for travel and generalist photographers using the Micro Four Thirds system. It doesn't grant you the blurriest backgrounds nor the most compact dimensions available among other Olympus lenses, but it's well-built, offers excellent stabilization and gives a great zoom range to match almost any situation you find yourself in.
Lens Olympus M.Zuiko Digital ED 12-100mm F4.0 IS Pro