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<blockquote data-quote="pforsell" data-source="post: 508281" data-attributes="member: 7240">I have 200VR2, 300VR1 and 400VR with TC-14E III and TC-20E III. The teleconverters deliver superior image over cropping every time, easy to test in 5 minutes by anyone. No speculation needed.The new aspherical version III teleconverters are much better than the old non-aspherical ones. With TC14 image quality loss is negligible while with cropping one loses 21 % of linear resolution. TC14 trashes cropping, if you have a lens designed for that TC. The TC20 loses maybe 20-25 % of resolution but 2x cropping loses a whopping 41 % linear resolution. A non-brainer again.My 200mm f2 VR2 with TC20E III yields a sharper and more contrasty 400mm f4 than the $6k AFS 200-400 f4. Inuff said, imho. And 300 f2.8 VR with TC14 is even better.In reality cropping cannot be avoided. There is no such thing as too much reach. Get the lens and TC first and crop in computer not in camera.</blockquote>

[QUOTE="pforsell, post: 508281, member: 7240"] I have 200VR2, 300VR1 and 400VR with TC-14E III and TC-20E III. The teleconverters deliver superior image over cropping every time, easy to test in 5 minutes by anyone. No speculation needed. The new aspherical version III teleconverters are much better than the old non-aspherical ones. With TC14 image quality loss is negligible while with cropping one loses 21 % of linear resolution. TC14 trashes cropping, if you have a lens designed for that TC. The TC20 loses maybe 20-25 % of resolution but 2x cropping loses a whopping 41 % linear resolution. A non-brainer again. My 200mm f2 VR2 with TC20E III yields a sharper and more contrasty 400mm f4 than the $6k AFS 200-400 f4. Inuff said, imho. And 300 f2.8 VR with TC14 is even better. In reality cropping cannot be avoided. There is no such thing as too much reach. Get the lens and TC first and crop in computer not in camera. [/QUOTE]

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