Diffusion vs Gel infront of light ?

[Ram Nanda]

Which comes where infront of light among Gel paper vs Diffusion Paper ?

and what are the situations to use 

- gel infront of light first and

- Diffusion infront of light first.

Does color also diffuse if a diffusion is placed infront of it ? 

 

Ex : A Full CTO + 250 on M90 vs 250 + full CTO on M90  

[Adrian Sierkowski]

I have always gelled before I diffed—- mostly because it’s a lot easier to color a less diffuse source. Besides, Diff is changed out more often than color in my own experience so better to have it more readily accessible—- and by moving it as close to the edge of fame as possible (thereby making a larger source) you get a higher degree of softening.