George,
You can check on Kerry Thalmann's website under Fujinon lenses. Accordingly this is from Kerry's site:
"4. Ditto on the L series. The 300mm and 420mm L series lenses were discontinued back in mid-1982. It was during this same time period that the C series was introduced. The L series was Fujis low cost, entry level line. The 300mm and 420mm L lenses were both in big, relatively expensive Copal #3 shutters. When the EBC multicoated 300mm and 450mm C series models came out in mid-1982, in smaller, cheaper Copal #1 shutters, there was little reason to continue offering the 300mm and 420mm single coated L models in spendy #3 shutters. So, I think it's fairly safe to assume neither of these models were ever offered with EBC multicoatings. With no alternative in the C line, the 210mm f5.6 was the lone member of the L series to survive past mid-1982. It is still listed in the DA.OE. Industries Price List dated March 2, 1988. I am currently lacking official Fujinon literature between 1983 and 1996, so I'm not sure exactly when the 210mm L was discontinued, or if it was ever manufactured with EBC multicoatings. Again, if you have a 210mm Fujinon L, could you check the coatings and let me know if it appears to be multicoated"
You will have to find your way to the Fujinon Lenses, here is the website:
http://www.thalmann.com/
I believe that the Fujinon f12.5 450mm C may have been a better choice.
Rich
