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I think it would easy to argue that if you could own only one lens, it would be one must like this one [...]. There are only two potential objections. The first is that it is larger and heavier than what many were looking for when they moved to the compact Fuji X system. The second is the existence of the Fujinon XF 18-55mm F2.8-4 OIS lens, which combines a much smaller size and less than half the weight and adds image stabilization, though at a loss of a constant..