if you want to show alot but don't want to take up a lotta room (ie you want to show the whole body of your figure )a fisheye effect works to show the entire pose without rescaling too much. true fisheye effects start at 16mm and work towards 8mm. as was stated above most people don't notice the effect til you get down to about 25mm. a real fisheye lens is 8mm (180 degrees)and would cost at least as much as a copy of lightwave maybe even 3dmax.