Sigma May Be Planning Some Quite Interesting Lenses

Sigma has produced some impressively advanced and innovative lenses in the last few years, and as the mirrorless race continues to heat up, the company seems to be showing no signs of slowing down. A few new patents have emerged, and some of them show some very interesting lenses. A range of new patents have emerged from Sigma, and some of them are quite impressive. The patents include: 14-30mm f/4 28mm f/1.4 28-70mm f/2 33mm f/1.4 20mm f/1.4 (APS-C) 23mm f/1.4 (APS-C) The most notable patents are the two zooms, the 14-30mm f/4 and 28-70mm f/2.