You're probably aware that R3E doesn't offer the usual FOV setting in degrees, but instead opts for setting FOV via a cryptic multiplier number. Thankfully, it has been recently explained on S3 forum in one of the posts what the number actually means:
It is a multiplier of the default FOV value of 58 degrees (vertical FOV). So for your convenience, here's a conversion table of all possible in-game FOV...
FOV setting multiplier explained
It is a multiplier of the default FOV value of 58 degrees (vertical FOV). So for your convenience, here's a conversion table of all possible in-game FOV...
FOV setting multiplier explained