There were two sizes, I'll look in my book. I've got a fair amount of Kowa info for the 21/4's.
The late models do indeed take a 67mm filter. These were made in chrome then black.
Early lens took a 77mm filter for the 150mm. Lens made in chrome only. The 55mm lens (early) took a 86mm filter.
For those wondering, the Kowa 19mm took 37.5mm filters.
I'm reading from a sept. 1, 1968 Kowa dealer price list.
Also have a Kowa six / 66 owners manual (before they called the 66 a Super 66) that also states 77mm for the 150mm lens. Can't find a date on this manual.
My 1980 Romney repair manual only addresses the 66 body, no lens information.
Last edited by mikebarger; 01-03-2013 at 07:01 PM. Click to view previous post history.