I recently purchased a Linhof labled 90mm Schneider f5.6 Super Angulon lens. I have been told that, except for the Linhof name, it is identical to all other cu rrent 90mm f5.6 Super Angulons. I also purchased a 110mm square Toyo lens board that is recessed 12.5mm, AND a Toyo Cable Release Extender for the Copal 0 shut ter. My camera is a 4x5 Toyo 45A II FIELD CAMERA. The cable release extender wi ll not mount on this lens. It is off by about 1/16 of an inch from matching up with the cable release stub on the lens. Thinking it was simply a bad part, I o rdered and tried ANOTHER one of these Toyo Cable Release Extenders. Same proble m. Has anyone else had this problem? I feel that any accessory like this that costs $89 should FIT! Please help me on this, if you can.