The macro ability of this lens enables close focus to 23cms and its resolving power across its range is very good. A very pleasing smooth bokeh with macro shots. This can be readily appreciated from the examples. We like it matched with our Sony Nex7 via an FD - Nex adapter where the focal length becomes 75mm due to the crop sensor. Matched to our A7II full frame it is 50mm. Build quality impresses with the focus ring delivering smooth function. In excellent A+ condition with both lens caps. This Canon macro has our strong recommendation.