02-12-2013 10:38 AM - edited 02-12-2013 12:18 PM
How do I tell when was the Canon EF L USM 28-70mm F/2.8 Len, serial # #44181 made.
Does the lens have a date code? It is two letters followed by four numbers. They're usually inside the metal mount on the black rearward surface.
I believe that lens was manufactured between 1993 and 2002 so the second letter of the date code would be from H through Q indicating which year it was made. The first two numbers are the month.