The YAMAMOTO package came with a hard plastic iphone case, a fish eye lens, and a small bag. The lens was very easy to mount onto the camera and required little time.
This is what it looks like when you put it on your phone, with/ without the protector on, the case is very slim.
I've never used a professional camera with a fish lens, but I have downloaded basic applications to apply the fish eye effect. Let me tell you, there is a huge difference in favor of the Yamamoto Fish Eye Lens. The ease of use applied with simply taking the picture with the lens already attached instead of applying graphic filters can not be under estimated. If your into the effect and want to explore, I would recommend the Fish Eye Lens + Case Kit for iPhone 4/4S.
As you can tell, I am very satisfied with the fish eye lens piece and I would recommend it to those who like to do amateur photography with their iphones.
Buy it now at YAMAMOTO INDUSTRIES
I will review the other products I got this week, so make sure you come back here and take a look at their webstore, they have alot of iPhone, iPad and Macbook accessories!