Video has been kicking around for awhile, but a great way to check out the various diffusions available through Lee Filters: https://www.youtube.com/watch?v=7l6FjphZXsk
you can also check out their website version to compare pictures of each side by side at http://www.leefilters.com/lighting/diffusion-list.html
Now also available as a free interactive video app for iPhone, iPad and Android. Switch diffusions on the fly and compare results. iOS: https://itunes.apple....