lens hood. The optics are identical to the original version. List of third-party E-mount lenses List of Micro Four Thirds lenses "Sigma launches DN lens
with the Sigma Art "A" badge on the side of the lens. It features a large manual focus ring and a detachable barrel-type lens hood. The optics are exceptionally
interchangeable autofocus SLR lens (for any Pentax K mount 35 mm SLR). 1981 Sigma 21-35mmf/3.5-4 (Japan): first super-wide angle zoom lens for SLRs. For decades