28mm Canon LTM lenses

Canon initially made this focal length in f/3.5 and later introduced an f/2.8. Has anyone in the PHOTRIO-verse compared the two optically?

Edit: I just found a discussion of these two lenses on RFF. For anyone else interested the URL is:


Mind the wrap.

I think I mentioned this before... in 1978 I bought a Canon Serenar 28/3.5 "Ultra Wide Angle Lens". It must have been their very first design, from the Korean War era. It was unsharp at any aperture or focus distance.
Some years later I had a black & chrome Canon 28/2.8. That one was much better. I traded it away because I decided that I didn't care for separate viewfinders.

I have the 28 f2.8 and the later black-and-chrome 28 f3.5. (there is no f2.8 black-and-chrome)
Wide open, they are both sharp in the center but not at the edges. They get better as you stop down.
The f2.8 is just a little better than the f3.5 at all apertures.
If you can find either for a good price, go for it.

*There is now a Voigtlander LTM 28mm lens. A bit more expensive but its a brand new lens.

I have one. it's tiny and i like the results..
I had a couple of the Voigtlander LTM..... & found the character too crisp & modern

It'll will be my main lens (in 35mm) for Europe leaving next week. We'll see if i really miss the 21....
but the MF is coming too.