Mark Wahlster , Jun 29, 2006; 09:32 p.m.
All three of the mid range Canon zooms from the same family the
28-85mm f4.0 nFD
35-105mm f3.5 nFD
50-135mm f3.5 nFD
are all very good lenses capable of near prime level quality when shot in their sweet spots (typically f5.6-f8.0)
I have owned all three and after a lot of use I have decided to keep the 28-85 and 35-105 as their focal lenghts and two ring configurations suit my uses for a zoom in this range.
Though I do find myself using the Tokina 28-70mm f3.5/4.5 SD more often as it is more compact and the color is amazing. My wifes std lens.