Is it possible to prevent the reverse fisheye effect at high FOV? Here's a screenshot I took at max FOV before and after I used my 1337 photoshop skills to apply a fisheye effect.
Before: http://i.imgur.com/SsorMU3.jpg
After: http://i.imgur.com/q1vbLT5.jpg
And here's a gif I found showing different FOV types.
http://i.minus.com/izHG7M9E62sL2.gif