Sigma unveils ultra-light 18-250mm macro zoom for travel photography

Sigma unveils new 18-250mm f3.5-6.3 DC Macro OS HSM travel zoom lens

Independent lens maker Sigma has announced a new DSLR zoom lens designed for travellers and backpackers, or anyone who wants an all-purpose zoom lens that’s both light and small.

The Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM is different because it’s been manufactured using a special polycarbonate material called Thermally Stable Composite (TSC).