> read the article. I read it - it's not new to me.
> gives several things you have to do to achieve super resolution (equated to sharpness here): superb lens wide open performance, tripod, slide film, ideal lighting, nearby subject. if you don't shoot slide film, use a tripod, have a nearby subject, or shoot wide open, then focusing accuracy isn't going to be your main determiner of sharpness. < Sure. But that's why there are things like "field tests". I think the main point is that in something close to laboratory environment AF is worse than MF, but in practice it may be faster and more reliable than MF. And I agree with that. I only opposed your claim that this is no way to conduct such a test. We have to remember that there are tests and there are tests. Regards, Lukasz
