Introduced in 1973. Filters: sky Y3, O, R, CCA4, CCB4, like the previous version. It does show the red s.s.c. of the new Canon “super spectra coating” Same chrome breachlock ring as previous version.
Replaces the first 1971 version, and will be replaced by the FDn version in 1979.
an important page on Canon FD series lenses (italian) by Sandro Presta