Does anyone know the correct amount units that see hidden should allow an assassin to see an archer without camo up?

I do not wish to make a bug report as i am struggling to find evidence that provides the correct number. I see multiple conflicting sources, anywhere between 800 and 1500 units.

This is from patch 1.62:

- We have modified how the See Hidden ability interacts with Archer classes. We've varied the range that an assassin can see a non camouflaged hidden archer anywhere from 1/4 to 3/4 of the current range depending on the archer's stealth spec vs the assassin's level. On average this means that an assassin will have to be within about 1/2 the range that he can see the archer from compared to how the system works currently on the live servers.

Not sure the actual range before but from an old Postcount thread it appears it was about clip range before the nerf:

http://www.ign.com/boards/threads/devs- ... 250714890/

I saw this, but i am unable to find evidence in terms of numbers (which is what the GMs will request)

Current range on uth appears to be 650 units on a player with 56 stealth,