Just wanted to say that I have received my 28-75 now. It's too early to say for sure, but it seems to work just fine! Sharp wide open at all focal lengths, and no misfocused ones among the 40 test shots I took. What a relief. Third time's a charm, eh? I look forward to take some real life photos with it. It should be a convenient travel lens as well as a good companion to my primes.