In its construction, the Sigma BF camera exhibits the harmony of cutting-edge technology alongside the patience and care of our engineers and designers. Every BF camera body is milled from a single block of aluminum, a process which takes 7 hours. The all-metal unibody design gives the BF exceptional rigidity, an elegant yet industrial look, and a truly unique experience for the photographer. See it in person at an authorized dealer near you, or learn more at sigmaphoto.com (links in our bio). #Sigma #SigmaBF #MadeinAizuJapan