Resident Evil 5 have really narrow field of view, which causes dizzyness / motion sickness for some people.
Luckily someone made a great mod, which makes FOV much more enjoyable.

Here you can see the effect of wider FOV:

Chris:

*UPDATE* 2013-02-26

Sheba:

Instructions:
Chris:
Download uPl00ChrisNormal.zip and extract uPl00ChrisNormal.arc to folder
Resident Evil 5\nativePC\Image\Archive

Sheba:
Download uPl01ShebaNormal.zip and extract uPl01ShebaNormal.arc to folder
Resident Evil 5\nativePC\Image\Archive

Download:
uPl00ChrisNormal.zip
uPl01ShebaNormal.zip