Here's a 100% crop of the top left corner of the frame for the 18-200/VR... JPEG out of the camera, cropped, then 20% USM at radius 7
1/400 sec, f/7.1, ISO 100, contrast -1, JPEG basic, no-resize, 20% USM
Notice the blur, lack of contrast, and the chromatic aberration? And this image has...