Quote Originally Posted by David A. Goldfarb View Post
New F-1 focusing screens are hard to find. Kevin Cameras on eBay has something of a selection of them.
You all are in luck right now, because KEH has five types of FN focusing screens in stock (and only two for the old F-1). They have AE (split microprism), PE (selective metering), SI (laser matte with double crosshair), SJ (all matte with spot), and "FN soft cover spot metering overall matte screen".

They also have five types of T-90 screens in stock.