The difference between Nikon lens 18-200 and 18- 140.

First, the lens structure is different.

1, Nikon lens 18-200: the lens structure is 12 groups 16 lenses (including 2 ED glass lenses and 3 aspheric lenses).

2. Nikon lens 18- 140: the lens structure is 12 group 17 lens (including 1 ED lens and 1 aspherical lens).

Second, the focusing method is different.

1, Nikon lens 18-200: M/A (manual priority autofocus) and m (manual focus).

2. Nikon lens 18- 140: internal focusing.

Third, the focal length range is different.

1, Nikon lens 18-200: focal length range 18-200mm.

2. Nikon lens 18- 140: focal length range 18- 140mm.