Fasten lid press on the lens, with enclosed Bändel loop, remove the cover if necessary, or photograph with lid.
Nice idea but is not working. The cover for the lens does not want to maintain it at that. Whether I the lens cover of the envelope (that fits very reasonably) on objective press, or as a last resort on top of the shell: This thing just does not stop. So the lens cap hanging around in the area, the Bändel looks out from under the cover.
Although the opening of the lens works as it should, and the lens can be extended and photographed it, but overall, the part of a total misconstruction because the dimensions do not fit, and the protection lasts not where it should be. So I have not imagined the matter.
CONCLUSION: scrap from Hong Kong. From there came the thing, by airfreight.
Hands off! The shell itself (without lens protection) is reasonably usable. Where the controls for the smartphone are recesses were installed. But that's only for slender fingers. Wider fingertips could thus get into trouble.