Anyone know where I can find one of these (I think the model number's MB401B), and of course any other Cavision products?

I can't seem to find a UK supplier, and the Optex website hasn't got anything listed despite being their official distributors, to the best information I can find...

Thanks in advance!

The info probably is on the website but well tucked away. It has taken me ages to find the filter pricelist. Best to give them a call on the phone. Is it one of these? http://www.optexint.com/pdf/chroszielvideofilm-ip.pdf
There are some more matteboxes in the Tiffen catalogue on the same site.

Thanks Colvin...

I've actually found that, yes, Optex (www.optexint.com) do stock their stuff, but haven't got much listed on their website for some reason and I also found Mitcorp (www.mitcorp.co.uk) who sell their products, in case anyone stumbles by looking for the same info.

Cheers again Colvin!