Product not as described
Well this is the first time I've been disappointed with an LDLC product.
The product in question is a set of 3 "No Name" lenses that are supposed to be specifically compatible with the Pi's camera module.
However, the product received states that it is specifically compatible with iPhones which is not the case. The mention "Raspberry Pi" does not appear anywhere on the packaging.
In practice we are dealing with three lenses of very very average quality (but for 9€90 it was predictable) as well as a kind of clothes peg clearly adapted for a phone. I tested it on my phone and indeed it is compatible: the lens fits well on the lens. On the other hand, it is illusory to hope to connect this thing to the tiny camera of the Raspberry Pi module.
For 9€90, I'm not going to bother using the right of withdrawal, that's 10e wasted in pure loss...