I have this lens and it does _not_ have the standard metric thread. Kodak is a US company and it made all it's threads based on imperial. It it very close to 52 mm and will work but the pitch is all wrong and will damage the threads after a while. I'm lucky enough to have access to a machine shop where I made an adapter that allowed me to put standard and cokin-p sized filters on.

In your case you can get a series filter holder to mate with the lens and using epoxy glue a stepping ring to it to mate with your desired filters. These adapters are mostly available at older photo stores in a big box that they haven't got around to throwing out yet.

Cheers,