A few years ago anyone could download the camera from Google from Google Play but now the application is semi-hidden (it does not appear in searches, although you can install it from its direct link).
In any case, the latest versions are only available for phones Pixel, Nexus 5X, and Nexus 6P: in the rest install a version of 2015.
Now thanks to the Ukrainian developer BSG many more users will be able to enjoy the advantages of HDR + photography introduced in the Pixel phone thanks to the modifications that have introduced in the camera of Google to work in devices with Snapdragon 820/821 and 835 as the LG G6, the OnePlus 3T or the Galaxy S8.
A secure MOD
In XDA have examined the changes introduced by the developer in the application of the camera to confirm that there was no malware inside and, in fact, you can check the changes made to this link to GitHub yourself.
The changes are scarce and basically consist of making the application believe that the phone is the device “muskie”, the device Pixel canceled.
Otherwise, this modeled Google camera is based on the latest version 4.4, so you will have the latest flash for selfies, double tap to zoom and small changes in interface and animations.
You can download this Mod from AndroidFileHost.
Note that this is a beta for now, and you will have to activate the installation from unknown sources. BSG claims to be working on testing different processing modes (Nexus, Pixel XL, Pixel 2 XL).
If you are interested in its development, you can follow it in the forum PDA, although in Ukrainian …