I would also like this information.

Quote Originally Posted by CP Goerz View Post
PS:I have drawings for....1016mm F16, 889mm F16, 889 F12.6, 762mm F12, 610mm F12, 610mm F9, 482mm F11 WF, and of course the 14" WA Dagor type lens, none have the refractive index of the glass mentioned which important is VERY important in the WA dagor copy...apparently its the most important part of the lens design.