This great opportunity showed up and I have till next Tuesday to decide between a very lightly used 50L or a brand new 35L to get together with my 7D and 85L.
Thing is: I won't be able to test the lens for front/back focusing issues with my body. Long story short: whatever I get, I'll have to keep.
As I understand, the 35L is known to be a better lens overall, with extremely sharp center and no focus shift issues, but is well known also for getting a front/back focusing copy once in a while.
The 50L has the focus shift thing, but (as I understand) won't front/back focus as regularly.
So, based on this. Which one should I get? I have room for both FLs but can afford only one right now.