Conclusion

The Tamron 10-24mm f/3.5-4.5 Di II VC HLD undercuts comparable lenses from Nikon and Canon with the main added benefit of an effective image stabilisation system, although whether that's really necessary on such a wide-angle lens is perhaps open to question. The build-quality is very good, the construction is shower-proof, the new HLD focusing system is fast enough and quiet, and most importantly the overall image quality is excellent.

Center and edge sharpness are excellent throughout almost the entire zoom and aperture range. Chromatic aberrations are very well controlled, geometric distortion is quite obvious but to be expected for such an ultrawide lens, and flare is only ever an issue when shooting directly into the sun. The only real optical issues are obvious corner shading at the maximum aperture, something that every full-frame shooter has to put up with especially when using wide angles, and a slight lack of edge sharpness when shooting stopped-down at f/16 and above.

If you don't mind the lack of of a big-brand name and value the very effective image stabilisation system, then we can definitely recommend the Tamron 10-24mm f/3.5-4.5 Di II VC HLD as an attractively priced, excellent quality ultra-wide-angle zoom lens for APS-C DSLR owners.

Ratings (out of 5)
Design	4.5
Features	4.5
Ease-of-use	4
Image quality	4.5
Value for money	4.5