In my HTC Desire camera lens was scratched, sodas were no reasonable shots possible. The idea was "only" to replace the lens, which I also tried. The lens is broken when removed. Since the replacement lens (glass) is more expensive than the battery cover with "plastic" lens I chose for this (also the simplicity exchanges) and I must say that I have not regretted it.
The cover "Original HTC Desire Google G7 Battery cover Mocca (bulk)" is absolutely perfect fit and the lens is far "Crystal Clear". I would buy this product at any time.