GhostFace, and his numbers PT.2
Reveal timer
1.5 seconds
If a survivor looks at you and you hide quickly, the reveal still counts .3 seconds after getting out of view
There is also a .2 buffer before the reveal starts
How to reveal
26% of the middle of the screen is the Reveal zone, if more than 20% of GhostFace's body must be visible and he cannot be revealed sometimes by 20% if a spot has an invisible barrier in between it
GhostFace can still stalk survivors when less than 20% of his body is revealed, however this can only be preformed on certain maps and props (Certain trees and walls allow it)
Crouching reduces the amount of ghostface's body is visible
Added more info

Comments
I'm surprised. Where do you got the numbers from m8?
Wiki is where I found most of it, some of the rest was my testing
.3 seconds can be heard when ducking behind cover
Close, but you also forgot the 0.2 second buffer before you can start revealing him, making it effectively 1.7 seconds total. That buffer stops someone from spinning their camera around and accidentally revealing them.
You can find most numbers here: https://forum.deadbydaylight.com/en/discussion/68260/
Or here: https://forum.deadbydaylight.com/en/discussion/comment/531640/#Comment_531640
Feels like most of it should be like this, but is not actually working like intended lol. Thanks for the effort anyway.
Was going to correct you on the .2 second buffer but looks like Peanits did before me :P
I will give BHVR a lot of slack for GF, as his mechanics were completely new for the game and it is extremely hard to achieve great accuracy in consistency because of all the elements in the networking alone, let alone the actual in-game models and positions.
This doesn't mean I wouldn't like to see him fixed though, that should still be a goal they're working on,