The first zoom lens with a constant F1.8 aperture throughout 18-35mm, the Sigma 18-35mm F1.8 DC HSM Art lens is a lens I told myself to have a serious look at. It is not surprising when such innovation comes from Signma considering their 200-500 Bigma made me look at them differently.
If you are really interested with those paper stuff, link to the the specification.
Photos are taken with SD1 Merrill powered by FOVEON X3® Direct Image Sensor (CMOS) capable of delivering Effective Pixels 46MP (4,800×3,200×3 layers)
Nice bokeh, looking forward for more samples soon. Images credit: Kenji Mori, Sigma.