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  • 2 months later...

I have seen a comparison between the 55-200mm and the 50-230mm.  It plotted MTF curves for each.  It looked like the 55-200mm was significantly better and that is what the writer made a point of saying.  However, the vertical scale did not start at zero - had it done so the curves would have all but indistinguishable.  You wouldn't even have to go to that extreme - just plotting the with a modestly longer but not zero base scale would have brought the two curves very close.  As far as i'm concerned, the difference in IQ isn't important 99% of the time and is a small price to pay for lower price, lower weight and less bulk.

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