The 70-200 f4 IS is a superb lense.
One of my most used.
When i bought it - it was because the 2,8 version at that time didnt had the same IQ.
But now as Canon has given us the new 70-200 f2,8 L IS MkII - then it looks like things are different.
So I want to buy the new 2,8 IS monster - but not sure - I love the f4 IS that I have.
But I often wish I had 2,8 --
Is it anyone out there who has done it ? Or maybe consider doing so?