Matte Box for client confidence and a SLR Magic 12mm?

[TheeDirector]

I am looking for a cheap matte box that would work with a SLR magic 12mm. I have a new client who I think is expecting a substantial rig. They hired me for my previous results but I feel I need to make this investment. Suggestions welcome!

 

[sigamy]

I have the Kamerar matte box. Only one filter tray, but for the cost I think it is one of the best budget options. I personally don't have the need for a matte box that cost more than my GH2.

I shot a review on my iphone. go to 4:45 mark:
http://www.youtube.com/watch?v=OcwJW2beoHs