A gear question: Summicron 28mm ASPH

I have not notice any color cast that required cornerfix, except for a little bit of vignettes.  Here's a shot unprocessed:

I find 28mm is a great focal length if you also use 50mm a lot.  It's as wide as I go since it doesn't require any add-on viewfinders.

--
David Young
My journey into Leica: http://leicalux.com