Cyanogen recently released the Cyanogen OS 12.1 update and now you can download the Camera.apk & Gallery.apk files for the latest version of the the OS. The latest apk files were uploaded online and are available for download at the end of this post.
The first two applications that were uploaded are for those devoted photography, in particular the Gallery and the Camera. We point out at once that the application for the camera should work only on devices equipped with a CyanogenMod ROM while on any other ROM application they will not run.
On the other hand the Gallery app can work on devices not running the latest CyanogenOS 12.1 according to user reports. If you're interested, you can find the downloads below:
Link APK Camera CyanogenOS 12.1
Link Gallery APK CyanogenOS 12.1