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Message: <blockquote data-quote="Paganman2" data-source="post: 463554" data-attributes="member: 37668">I have this lens and think it is great and use it on my D7100 as my one and only lens, i tend to use the long end almost all the time as my hobby requires this, i also crop quite heavy on top of this to get me closer to my subjects,  i have seen the charts that show the drastic difference in IQ when using the lens at the 200mm mark, i understand at this point the lens is on par with many pro grade 200mm zooms.My dilemma is - could i make use of this IQ improvement by shooting at 200mm on my D7100 and still make up the difference by cropping in post to equal what i was at when using the 300mm end,  if so would i see an IQ advantage for doing this?P.</blockquote>