I was looking for a way to attach a camera lens to my nothing 3a pro and didn't find any bumper nor frame to buy, so i decided to design the case too; then i found this awesome design over on printables and decided to use it, but the space around the camera was simply not enough to add any adapter, so i modified it to add mine. Funny story, the perfectly cylindrical shape of the camera bump not has become a feature, allowing bumpers and adapters to simply attach and stay in place.