You got a lot of good advice. I use all the big 3 flavors and they are all good, at least the ones I have. Never had to send one back. I would like to comment on something else. I like the Nikkors because they mark the f/stops with big, easy to read numbers. And there are no 1/2 stops which I don't like counting down. One of my lenses has a back light, but with the coldlight I have it doesn't work that well. The numbers are tiny. I even have a light next to the lens so I can read the f/number and they are still small. If your eyes are good, please disregard.