Thanx for the inputs
Indeed, the difference looks thin. Will I see any difference in the real world ?
Think I'm decided for the 70-200II. The f4IS have too much overlap from 70-105 with my 24-105 with same features : f4 + IS.
However, I will certainly regret my 135L. Light, fast & compact lens for shooting mid-range. But I will appreciate IS in this range.