Its been a while since I've seen a 19 or 24" Dagor but the ones I saw I'm pretty sure were f7.7 like my 16 1/2". I know the 19 and 24" Artars are f11 and my 30" Artar is f12.5. What were the exact differences in the series III and series IV Dagors? Apparently the series IV Dagor was an f11 lens so the ones I've seen must have been series III.
Originally Posted by TracyStorer
Last edited by RobertP; 04-10-2009 at 07:51 AM. Click to view previous post history.