New Sigma 60mm f/2.8 DN Lens In-Stock for M4/3 and Sony NEX June 5, 2013 By Eric Reagan The new Sigma 60mm f/2.8 DN lens is in stock and now shipping for the Sony NEX and Micro Four Thirds systems. Check out the NEX version here at B&H Photo and the Micro Four Thirds version here at B&H Photo.