Tempered glass lense protection, is it worth?

[thetoan]

Hi!
I use my OP6 without any case and I was wondering if a glass lens is usefull to protect my back camera?
Anyone has already used one?
Is it worth? does it really protect from cracking?

Here an exemple: https://www.ebay.fr/itm/3Pcs-HD-Tem...hash=item1cae4c45d8:m:mWQGQ8rl5aZX9SkX3jfp7pg

Thank you

 

[theaxis01]

Personally, I'd be Leary of covering my camera lens with anything.

Even the TG covers for the front leave the camera lens exposed.