> He told me he put the 70-210 on his collimator and found that > the focus shift from min to max zoom setting is zero. Surprised > him, they almost always shift a little bit. He liked this lens a > lot ... Said the construction was second to none, in his > experience.
The 70-210 always was a great lens, the benchmark others were compared to for quite some time. I wish someone would produce the AF equivalent - constant f/4 aperture, compact, great performance...............or a 200 f/4 prime with truly excellent performance and responsive AF. John
