iPhone 4 Rear Camera
5 megapixel camera with HD (720p) video recording capability.
If your pictures are coming out blurry or you think the camera is not focusing properly, it may be that the rear panel camera lens in scratched. Before you try to replace the camera, inspect your rear panel camera lens and see if it appears scratched. If so, replacing the rear panel may fix it.
We offer you the lifetime iFixit warranty on many products. All information on our warranty conditions can be found here.