Flat #0 shutter size Toyo "View" lensboard, 6.2" (158mm) square. Fits the 45C, 45D, 45G, 45GX, VX125 series and older Omega models. Typically used for lenses 90-150mm in Copal/Compur #0 shutters.
NOTE: When using this lensboard with a 90mm lens a wide-angle (bag) bellows is required.