Piqué and sumptuous bokeh

Coupled with my 6D, I missed few pictures even indoors. If they are unsuccessful, it is 100% my fault. In addition, no micro-adjustments were necessary. In short, a product of very good quality.

So why four stars and not five?
The first new perspective that I received showed a burst (and I mean a shine and no dust or fungus) on the internal lenses, visible closing the diaphragm. So I involves the service of Amazon to get another goal which it has no defects.