This is a test I did with all the LEE Filters Diffusions with Kieron Jansch from Manned Camera.

Here we have 2 identical galleries for side by side comparison of LEE Filters Diffusion.

DOP Don McVey compared every LEE Filters Diffusion while lighting the same model with a single M8 HMI. It's an invaluable reference for better understanding the range of diffusion effects available.