According to egami, Sigma posted several new lens patents for APS-C cameras, these lenses are wide-angle zoom lenses, which is to be some new art lenses.
Here is a list of upcoming new wide-angle zoom lenses from Sigma:
- 18-35mm F1.8
- 15-30mm F1.8
- 17-35mm F1.8
- 16-50mm F2.8
- 12-24mm F2.8
via: EG
Read More: Sigma Rumors