Small Yet Sturdy: OM System 40-150mm F4 Pro Review

One of the biggest perks of the Micro Four Thirds system is larger zooms in smaller packages. Now, Olympus has re-branded.

One of the first moves for OM System, along with a new OM1 flagship mirrorless, is to create the smallest fixed aperture telephoto yet: the OM System 40-150mm f4 Pro. Now, there’s the usual slew of fine print conditions attached to any claim of world domination.

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