Different version of 300mm f2.8L non-IS?

Hi, have read many post here about this lens. I have also a non-IS with me. I am happy with it. But there is a question, some post say there are different version for this lens, some of them say there are MKI and MKII or even MKIII. I do not know my one is which version. My lens code is UH. Is there anyone can let me know what is that different and how to see the different?

Thanks!

Youming

I believe there were different non I.S. versions of the EF 400mm f2.8L lens...the original, the "II" version, and the I.S. version.

I only recall 2 versions of the EF 300mm f.2.8L lens, the non I.S. version, and the current I.S. version.

Of course I might be wrong.

Where do you find lens code on 300L2.8non IS ?

There should be no need to look at teh date code because it will say "II" on the label. For example, if you look at the picture at the top of teh link below, you'll see that it has written near the red ring teh words "Canon Lens EF 200mm 1:2.8 L II"
http://www.the-digital-picture.com …L-II-USM-Lens-Review.aspx

Or the new 70-200 where it says "Canon Zoom Lens EF 70-200mm 1:2.8 L IS II"
http://www.the-digital-picture.com …S-II-USM-Lens-Review.aspx

Also, if you have any questions about what models have been made in the past, check the camera museum at http://www.canon.com/c​amera-museum/

It does not list any mk II versions of the 300 2.8.

newworld666 wrote in post #9396561
Where do you find lens code on 300L2.8non IS ?

Yes, at the rear of the lens, there is a Lens code. my one is UHXXXX.

HOSTED PHOTO
please log in to view hosted photos in full size.

Mine is UG0418