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Mounting 4.5" filters

Tito Ferradans

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Matteboxes have 4.5" round holders (like the OConnor O-Box with a stepdown ring on the bellows).


You can also get screw-on step-up rings from your lens filter size to a 4.5" Round Filter Holder (usually two separate pieces that screw together and there's just enough room for the filter to sit inside).


I've still got dozens of 4.5" filters left over from a package I bought with my first ARRI 35mm camera, including some really old-style filters (like a Harrison Fog 5 filter... don't see using that any time soon!)

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