Helicopter optics n sensors.....

[Army of One]

I have had a brief search but couldn't find a started topic....so......

Regardless of helicopter it is on......what are the best optics for a modern attack helo....? I have read about a few, the Apache PNVS and other systems, the Tigre/HAP 'top owl'....I'm sure it is that without checking.....and some soviet stuff....Samshit or something similar......if it helps I want to uprade some Ka50's......virtually all kits seem to be based on the prototypes....
Admin....I put this here to start a conversation re the topic....but also for help.....I didn't see the point in starting two seperate threads in various topics......if it needs to be moved.....so be it......