Gregg MacPherson
Member
The metal filter trays in my MB-900 have a rebate depth of 5mm. Tiffen glass fits good re the thickness. I don't have any 4x5.65 filters yet, but all the holders fit 4x4 nicely. I haven't used the modern Arri/Chrosziel that this MB is based on to make a direct comparison, but I'm guessing that with MB-900 you need a bit more care when sliding the loaded filters in so you don't scratch the glass.