Looking for rodless, screw-mountable mattebox or standalone filter holder

[QuickHitRecord]

I am trying to find one that I can mount on my Velbon SPT-1 lens support. Has anyone seen anything like this?

(I don't think that the Cokin filter holder will work).

[kirk]

Could this fit the bill?:

http://dfocussystem.com/dmatte.php

[QuickHitRecord]

Thanks, Kirk. I am not explaining myself very well. What I am hoping to find is a matte box / filter holder that is built to be held vertical by a single 1/4" screw at the bottom. I know that this may not exist, but I thought that I'd put it out there and ask the question.

[mmtv]

I was looking for the same system, i.e. a rodless and yet NOT lens-mounted mattebox system.
Have found only one photo and confirms that this is possible indeed.

Site: http://www.monaceio.com/lever_focus.html

[img]http://i1217.photobucket.com/albums/dd381/judocas/low_rider_RODLESS.jpg[/img]

The website however does not mention about this mattebox + adapter... so.. you have to contact them?