"Digital" lenses

[mapson]

I understand that nobody may have personal experience with all of the 
following lenses, but from what you know how would you rank (sharpness & 
distortion) the following lenses?

Sigma Digital 18-50mm F/3.5-5.6

Pentax SMCP-DA 16-45mm F4 ED-AL



Also, we currently have

Fisheye Zoom 17-28mm f/3.5-4.5

Would the "digital" lenses offer much less distorted picture than the 17-28 
'analogue' ;-) lens?



      ---- (*)o(*) ----
Robert
[EMAIL PROTECTED]