The Raptar uses Series filters. I do not know about the Tominon.
Series filter system has several slip on adapters that the filter goes into. Measure the outside diameter of the front lens barrel then use the info in this thread, www.graflex.org/helpboard/viewtopic.php?t=3324 , to find which size and adapter you need. See the post by pv17vv near the end of the thread.