Sigma 18-35mm preorders available at Amazon (click here).
Learningcameras reviewed Sigma’s biggest achievement (so far): The Sigma 18-35mm f/1.8 DC HSM lens, the first zoom lens for APS-C cameras to deliver constant f/1.8 over the zoom range. I featured many reviews here on CW, all praise the outstanding performance of this lens. Learningcameras review isn’t different. More after the break.