noticeable chromatic aberration, especially at 200 mm,, visible coma,, susceptibility to inner flares at all focal lengths,, slow and noisy autofocus,

Listing the advantages and disadvantages of the Tamron 55-200 mm was a difficult task – practically in all categories it had close to average results. You would be hard-pressed to choose one serious slip-up but, on the other hand, in no category we saw...