Stupid Question - Serial # Location on a......

Does any know the serial number location on the following lens

800mm f5.6, 600mm f4 and 400mm f2.8?

Thanks in advance.

are they all on the mount, in black?

That's the date code.

My 500 isn't in front of me, but I think it's on the lens barrel near the lens mount. Black text.

I guess it's the same for the other superteles.

nellyle wrote in post #17215644
That's the date code.

My 500 isn't in front of me, but I think it's on the lens barrel near the lens mount. Black text.

I guess it's the same for the other superteles.

you're right...totally blew that...according to canon's site, on 'where is my serial number' it should be towards the mount on the barrel

DreDaze wrote in post #17215656
you're right...totally blew that...according to canon's site, on 'where is my serial number' it should be towards the mount on the barrel

I thought the same as you until I remembered the other number printed on the barrel!

Yup ~ the underside of the lens, hard-by the lens mount.

Here's the 300mm ƒ4. The x1.4 MkII extender observes the same placement convention.

IMAGE LINK: https://www.flickr.com …26676723@N08/15​524891106/

Thank You.