AvTvM said:
very unimpressive. IQ behind EF-S 10-22, released 13 years ago an d also behind dirt-cheap original Canon EF-S 10-18 with IS.
Wheather sealing being the only advantage, but of very limited use, only relevant on Canon 7D/7D2, since all other Canon APS-C camera bodies (rebels, 77D, 80D) are not sealed.
Tamron pricing not attractive compared to both Canon lenses plus features and IQ and also loses value much faster than original Canon lenses.
and although TDP fails to mention it: the age-old Tamron problem still present: zoom ring yet again turning *the wrong way* is still not fixed. zoom ring turnibg *the wrong, Nikon way* is a sign of utter disrespect for Canon user base and even mor importantly an unpleasant nuisance in the field when used intermittently with real Canon lenses. as long as tamron is not willing to get such a simple and basic feature *really right* they dont deserve business from Canon users. they might peddle their wares to Nikonians, who are in more need of decent DX WA lenses anyways.
I'm not sure what review you read. In comparing the Tamron to the EF-S 10-18, the conclusion was that the Canon had a narrower aperture, more vignetting, and was less well-built. In comparison with the EF-S 10-22, the Canon was found to have "modestly" better IQ at wide apertures and less geometric distortion (remedied with one click in LR), but more vignetting and a lower maximum magnification. The EF-S 10-22 lists for 30% more than the Tamron, even after 13 years. You can arbitrarily dismiss the importance of weather sealing, as though if your camera is ruined by the rain your lens may as well be trashed as well, but most people would prefer to minimize the loss, regardless of whether their camera is weather sealed. The honest 4 stops of VC is a true benefit if you ever wander indoors or outside on a dark day. And then there is the 6-year Tamron warranty, which should shame Canon and Nikon and everyone else with a one-year warranty to accompany their OEM prices. Finally, the Tap-in console reduces the standard 3rd-party boogeyman of future incompatibility by making firmware updates quick and easy.
Now, it happens that I currently have both the Tamron and the EF-S 10-22. I have conducted comparisons. It is true that on the edges, especially at 10mm wide open, the Canon is slightly sharper in the corners (it is not sharper in the center, where a subject is likely to be found). However, this is only evident if you are pixel peeping. The differences are not visible under normal image viewing conditions, whether on screen or in print. The Canon does have visibly greater CA, however. Like geometric distortion, this is easily corrected in post, and should not be a practical matter in making a choice, but the difference SOOC remains. Also, IMO the Tamron is better built. Tamron even supplies a lens hood at no additional cost (shame, Canon!).
As far as the zoom ring turning the "wrong" way, to each their own. If that is enough to turn you off, then that's your issue. The days of glibly dismissing third-party gear with confidence that OEM gear will necessarily be superior have passed.
