This lens outperforms any Sony plastic lens by light years in terms of build quality. This lens is superb in its rendering and I find it sharp and rich in contrast. The bokeh is soft and really makes images pop. Some reviews say it's not sharp around the edges, which may be true, but I've honestly never looked at photos with this lens and thought they looked soft. Maybe up close, wide open, something glows, but that's the worst thing to say. Highly recommended.