Sigma’s new 12-24mm f/4.5-5.6 EX DG HSM II Nikon made some gains over its predecessor, including a dramatic improvement with tapping down chromatic aberration. But the lens also stumbled, regressing in our lens distortion category.
Sigma is advertising its super wide-angle zoom lens – the 12-24mm f/4.5-5.6 EX II DG HSM – as capable of producing images with an approximate range of 122° to 84°.
With numbers like that, it would be a perfect companion for landscape and architecture photographers.
Sigma praised the revised optics of its new wide-angle lens, which it said combines one SLD (special low dispersion) glass, and four FLD (“F” low dispersion) glasses. Sigma said this new optics system will help reduce chromatic aberration, especially compared to the previous generation – the Sigma 12-24mm f/4.5-5.6 EX DG.
This improvement in chromatic aberration was dramatically documented in our lab testing and analysis, where we found the EX DG HSM II made a huge leap over the EX DG. The EX DG HSM II’s reduction in color aberration was most striking at focal lengths 18 to 24 mm. At 24 mm, chromatic aberration was not even detectable.
Our testing found additional strengths for the EX DG HSM II for Nikon, including:
The EX DG HSM II’s mixed results gave it a DxOMark score of 17 – an improvement from its predecessors overall rating of 11. Still, both scores are pretty low. If you’re deciding between the two lenses, the tiebreak might come down to price. At $1,400 (US), the EX DG HSM II costs $500 more than the EX DG.