Sigma Contemporary 16mm f1.4 DC DN for Micro Four Thirds Nikon Flash The 40mm focal length makes

The 40mm focal length makes it a versatile all-purpose prime

With clean optics and good mechanical function

This is an older version of this lens (hence the Nippon Kogaku branding) but the optics are clear

Rollei Bay 1 Haze (H-1) filter with minor flaws

Sigma Contemporary 16mm f1.4 DC DN for Micro Four Thirds Nikon Flash The 40mm focal length makesThe Sigma Contemporary 16mm f1. 4 DC DN is a fast, sharp prime lens for Micro Four Thirds cameras. In excellent condition, this lens provides a useful wide standard view that's ideal for day to day shooting (field of view is approximately equivalent to a 32mm lens on a full frame or 35mm camera). In excellent condition, with hood.