This Olympus lens has a 0.12-metre minimum focusing distance and a 45 mm maximum focal length. It could be the perfect thing if you're looking for a zoom lens.
From London Camera Exchange
Olympus M.Zuiko Digital ED 12-45mm f4 PRO Lens
HDEW Cameras
Olympus M.Zuiko Digital ED 12-45mm F4.0 PRO
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