>From what you are saying, I really don't need to
>spend the extra money unless there is another
>value you are gettimg for the $$$ (i.e. construction,
>warranty, etc)
>Dennis

Depends on what you shoot, and how important the distortion
is to you. BTW, "wavy-line" distortion may exist in a lot
of wide angle lenses to minimise the distortion number, but
a larger pure barrel type is preferable for me, with pincushion
very undesireable.....