
Originally Posted by
Colin Southern
I think a lot of people mis-understand the purpose on of-flash diffusers; the purpose isn't to soften/diffuse the light directly (as you say, it's still a small light source so it doesn't make any difference) -- it's to diffuse the beam of light so it bounces off wall, ceilings, floors, and other reflective objects ... THAT'S what's doing the softening.
For what it's worth, in my experience, Lightshpere's are great at doing that, and Stofen's are hopeless at doing that.