So I have a family member's account who hasn't played much and they only have a Camo Skill rating of 1. I have a camo skill rating of 5 - in the same tank (T49) side by side, the difference before being spotted when stationary was about 10m. With a medium tank (Pz III/IV) the difference was a bit greater, say 12-15m. But on the whole, I was surprised at how little a difference camo skill makes to the visibility of a tank. It makes me wonder if the game isn't working properly - but I don't know the formula for spotting distance so there you are.
Has anyone else got any experience with this?