For such a low price an extraordinary quality and above all function. As you can see from the attached pictures, you can so extreme super macro shooting for under 20 (with 18-55mm kit lens was shot). The P / L - ratio is so good. Small drawbacks you have to make, but that generally applies to these Retro Adapter, you can even use no autofocus, you have to open the aperture with a trick manually and you need a tripod or very bright light (sunlight shining directly on it), also twice the Focus range very very low. But can one fix with focus shift. Would I buy but again, unbeatable for the price and easy to carry.
