Sigma 24-105 f/4 DG OS ready for preorder
The Sigma 24-105 f/4 DG is scheduled to ship on November 4, 2013 according to B&H Photo. The new Art series lens from Sigma will be priced at $899. This is significantly less than the Canon EF 24-105 f/4L IS when purchased new. Although, you can shop around for easy “white box” deals that bring the lens below the Sigma. However, if the Sigma performs better, then the small additional cost may be worth it.