For the price of 35, I did not think that this part works so well. Actually, I had just bought as a permanent light for the camera on the copy stand to fast times to photograph a few newspaper articles because my scanner is too slow. Now I'll take it on the go sometimes to shoot close-ups. The flash sync at the Canon G10 works well on the Sony A6000 there is no contact. Here it will probably need an adapter for Multi Interface Shoe, I still need to get. Whoever criticizes the light output, will probably outwit physics, it is for close up and macro photography (this is the part of well-thought) perfectly adequate, the lighting good. Who wants to take pictures of the ceiling frescoes in the Würzburg Residenz, you should look at a different solution and a generator. That the lens adapter is shaky right, but can not fall down. It bothers only that the ring light slightly twisted on the adapter. The lens adapter is nothing else than a remanufactured Cokin P adapter. If one uses the original, everything is tight and firm. In this way, the unit fits perfectly with the Cokin filter system and is designed for users of this system a good expansion. Only the battery compartment lid is a bit thin, as it should not press too hard one. But you must always keep in assessing eye on the prize. Therefore, a full five points.