When you use DPReview links to buy products, the site may earn a commission. Rendering: Sigma Sigma has revealed the BF, a ...

Sigma has announced the 300-600mm F4 DG OS Sports lens, designed specifically for applications like sports, action and ...

We're at Sigma's pre-CP+ event at its headquarters in the suburbs of Tokyo. CEO Kazuto Yamaki is talking and we'll be ...