If you own an L series lens, then look for 6 character screen printed code on the mount and cross refer to the table below:
|
Factory Code |
|||
| U | Utsunomiya, Japan | ||
| F | Fukushima, Japan | ||
| Q | Oita, Japan | ||
| Year Code | |||
| A | 1986 | 1960 | |
| B | 1987 | 1961 | |
| C | 1988 | 1962 | |
| D | 1989 | 1963 | |
| E | 1990 | 1964 | |
| F | 1991 | 1965 | |
| G | 1992 | 1966 | |
| H | 1993 | 1967 | |
| I | 1994 | 1968 | |
| J | 1995 | 1969 | |
| K | 1996 | 1970 | |
| L | 1997 | 1971 | |
| M | 1998 | 1972 | |
| N | 1999 | 1973 | |
| O | 2000 | 1974 | |
| P | 2001 | 1975 | |
| Q | 2002 | 1976 | |
| R | 2003 | 1977 | |
| S | 2004 | 1978 | |
| T | 2005 | 1979 | |
| U | 2006 | 1980 | |
| V | 2007 | 1981 | |
| W | 2008 | 1982 | |
| X | 2009 | 1983 | |
| Y | 2010 | 1984 | |
| Z | 2011 | 1985 | |
| Example | US0905 | ||
| Factory | U | Utsunomiya, Japan | |
| Year | S | 2004 | |
| Date | 0905 | 5th Sept | |
