I'm going to be focus pulling on a short film for a couple days starting tomorrow. In terms of camera kit it's all fairly simple, we're shooting Amira with a CP.2 prime kit. We're going to be using an arri LMB-15 mattebox, with 4x5.65 filter trays.
Due to being busy this week, I wasn't able to attend prep at the kit house with the DOP. Something I haven't worked with yet are Diopters, and we have a set of 138mm diopters on this shoot. I've seen them used before on a set I was 2nd ACing on, but didn't pay as much attention as I should have towards how the 1st AC placed the diopters into the mattebox. Am I right in saying that diopters sit in a tray just behind the mattebox? If anyone can offer any advice that would be great, I'm sure it's simple, but if I learn anything new now I can avoid any mess ups tomorrow morning.