Essai du Tamron 10-24 mm f/3,5-4,5 Di II VC HLD sur Canon EOS 7D Mark II par Klaus Schroiff pour Optical Limits :Tamron 10-24mm f/3.5-4.5 Di II VC HLD (Canon EF) - Review / Test Report
Commentaire introductif de Klaus sur le forum : "Pfff
Qualité optique : 2,25/5
Qualité mécanique : 3,5/5
Rapport performances / prix : 2/5
The Tamron 10-24mm f/3.5-4.5 Di II VC HLD is an affordable option in this market segment but its affordability comes with a number of compromises. Now, if you just intend to shoot at f/8, you can get reasonably happy with this lens. At this setting, it is quite sharp across the image field. However, at large aperture settings, it's mediocre at best with soft corners. Adding insult to injury, there's also a heavy field curvature at 10mm. Lateral CAs are Okay at the image borders but they can be disturbing in the image corners. Image distortions are about average for a lens in this class with heavy barrel distortion at 10mm. Vignetting is very noticeable at large-aperture settings.
The build quality of the Tamron lens is decent and about in line with what you can expect from a modern, consumer-grade offering. Tamron uses high-quality plastics here and they even added some basic weather sealing. The zoom action is a bit on the stiff side but we prefer it like this on ultra-wide zoom lenses actually. Manual focusing is not a joy due to the cheap focusing ring but then most users won't bother anyway. We used the EOS 7D II for testing and the AF wasn't overly accurate. To be fair - that's not unheard with such wide lenses. However, in real life, it's not a big deal because the depth-of-field is quite immense anyway. On the positive side, the AF is reasonably fast with some minor noise emissions. A positive aspect is certainly the image stabilizer which can save the day in low light situations - and it can help to avoid the weak performance at fully open aperture.
The Tamron is not a bad lens but, ultimately, it is just not "good enough". There are simply better options out there.