David Mullen ASC
Moderator
Matteboxes in general are incredibly over-rated.
I see people who have older lenses use big matteboxes to pimp up their cameras. Mostly it's just about showing off. Rather stupidly, I might add.
For Cooke Speed Panchro, Zeiss Standard Speed and Superspeed (and other older glass), regular 4x4 filters do the job just well. Yet I keep seeing people use big filters and big matteboxes, spending thousands of dollars in the process.
It's not only their fault, many vendors/sellers/manufacturers say you MUST ABSOLUTELY use 4x4.5 filters or 6x6 or sizes like that, when in fact you only need smaller sizes.
Heck - I used 3x3 filters with Zeiss Superspeeds with absolutely no vignetting. Both 3x3 matteboxes and filters are dirt cheap. However, for some reason, people are afraid to show up on set with "cheap" stuff like that. Not to mention screw-on filters and shades, which do the job equally well.
Of course, newer glass (which is much bigger in size) needs big filters. But my advice - don't spend thousands and thousands of dollars if your glass doesn't require it. Forget about showing off, and concentrate on telling your story.
You're forgetting that a typical lens package includes primes and zooms, and generally the 35mm cine zooms (such as a Cooke 20-100mm) need the 4x5.6 mattebox even if the primes can get away with a 4x4 or 3x3.
This is why most people invest in 4x5.6 filters, they want to be covered in case they have to use the bigger optics.