I don't have any experience with the Canon 28mm f2.8, but I do own and really like the Leica 3.5cm f3.5. It's literally the smallest lens I have. Even more diminutive than the 3.5cm f3.5 Summaron. It's a little soft in the corners at wide apertures, but sharpens up pretty nicely stopped down some. Very nice for people pics particularly those positioned away from the edges of the frame where detail can get a little less sharp at widest apertures.
Here are a couple of pics for comparison purposes.
Leica 3.5cm f3.5 on M240 - probably wide open or one stop down because light was very low and this was hand held M2400348 by Brusby, on Flickr
Same but probably around f5.6 M2400414 by Brusby, on Flickr
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.