round or square?

[debuys]

I am building a handle / support / cage with the possibility of selling it commercially if I get it right.

I have a cheap matte box. I am perfectly happy using screw in filters, and zooming through the matte box's filter section and beyond. I use my matte box as a glorified hood / shade.

Does the rest of the community here use square filters or just "screw it"?

 

[Alpha Beta Omega]

4x4 filters when you're on set is much better. All screwing and un-screwing takes to much time and is more complicated.