Quote:
Originally Posted by Itsed65
Could be your older one is a tiny bit out of whack? I've never micro adjusted mine, but I'm tempted to give it a try sometime. I just worry about making it worse
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I don't think so Ed. I did extensive testing of the old lens and it had excellent resolution in my tests. I think that the improvement is all in Contrast and Color.
Everyone should try this test. Shoot a flat road sign, in good light at f/8.0, about 50-feet away, with shutter speed up at 1/2000, on the tripod. Shoot it first with the AF sensor, using the viewfinder, using single-shot quiet mode; then don't move anything and go to 10X Live View, focus and shoot. Look at them side by side at 200% and if they're the same, then you need no micro-adjustment. If the sharpness improves, then you need an MA. You can lay them right on each other and see even the smallest difference.
I went back to look at old reviews and found this one saying the same thing that I'm seeing:
http://www.the-digital-picture.com/R...ns-Review.aspx
Dave