The sharpness of this achromatic lens is very good with my camera. For the attachment I have additional adapter required, sold to Sony about how to setup filters. As this camera has a fairly large 1 "sensor, the depth of focus is very low (at SLRs with larger APS-C sensors, it is even more critical). Already require level objects that the camera with care must be aligned vertically above the object . preselection of diaphragm 8 to 11 and in accordance with good lighting is also useful. The easiest way is if you record outside in overcast conditions. If you advance a compact camera with 1 / 2.3 "sensor and automatic. Had focus from 3 cm, one is initially unpleasantly surprised how much effort makes the recording with the Raynox. Another tip, if your object is anything but flat, try it nevertheless times with a good smartphone, due to the small sensor is the focusing range there again significantly higher. In the end, the pictures look often better.