The no. 21347 is just the serial no. serve no purpose.
while the production code UH1000 means that the lens was manfactured in 1993. This means that your lens is more than 10 years old. :bigeyes: L lenses are really meant to last. :thumbsup:
The no. 21347 is just the serial no. serve no purpose.
while the production code UH1000 means that the lens was manfactured in 1993. This means that your lens is more than 10 years old. :bigeyes: L lenses are really meant to last. :thumbsup: