content: This product is wonderful. It took harsh shadow lines out of my pop up flash. Its a great stepping stone, both functionally and learning-wise, to a hot shoe flash and very reasonably priced.I would have given it a 5 if I hadn't had to cut some of the plastic tab that fits into the shoe to get it to fit into my Canon Rebel XT. There is an included instruction sheet describing where and how much to cut, but if you want 5 stars its gotta be perfect out of the packaging ;)