A Legendary Sigma Lens was Discontinued

DSLRs may be in demand, but they certainly are not being produced anymore. This means that accessories, such as additional lenses, will likely bear the brunt of the decline. Although there has been no official announcement, Sigma has discontinued several DSLR lenses over the years. And now, the latest to join the list is the company's Sport lens, the Sigma 60-600mm f4.5-6.3 DG OS HSM. The DG HSM initial stands for hyper sonic motor, which is compatible with DSLRs alone.