Serial Number Question: Just curious

[Cory]

I've got a 75-300mm 4-5.6 IS USM. I believe it's one of the originals, but I am not totally positive. I picked it up around 2004. There is a code stamped on the back, but it is "90200853". No letters. Did Canon change their numbering at some point? Or are the non-L lenses coded differently? Anyone have any idea?

[Maleko]

I checked my L lens and non L lens, both are just numbers, no letters.

[wickerprints]

The serial number is just that, a number. All Canon EF lenses have a serial number unique to the model of lens.


Some EF lenses also have a second code, called the date code. All EF L lenses should have this code. More information about this code is available here:


http://www.the-digital-picture.com/Canon-Lenses/Canon-Lens-Aging.aspx

[Cory]

I find the letter/number code on both my L lenses.


A serial number only (seemingly) on my EF 75-300mm 4-5.6 IS USM


No numbers of any kind on my EF-S 10-22mm (that I can find).


Was basically just curious how old my 75-300mm lens was.