Hi Everyone, I am using a D5500 with an Ilford head. I mostly print my 6x6 negs, but I'm curious about moving up to 4x5. I have the carrier (glassless), but, I don't have that little white box that diffuses the light for 4x5. I got this second hand a few years back so I don't even know what it's called. I love the enlarger. It's leaps and bounds better than my old Omega. But, I want to start searching for that 4x5 white diffusion box.
Any ideas what it's called and where I can find one would be very appreciated.