Just bought a new board 110mm2 for my copal 1 Nikkor-W 210/5.6 lens for my 4x5. I mounted the lens on the new board, but alas the aperture ring does not move now. I understand I need a spacer, but when I bought the lens new in a Nikon Linhof-sized board, and subsequently took it apart, I did not notice a spacer ring. So, if I'm not mistaken, I've been informed that I need a spacer ring for this particular lens, is this correct? Where o' where can I get one at lightening speed?