Sigma CEO: The Balance of APS-C, the Success of Sigma 17-40mmF1.8 and the Respect for Viltrox

In an extensive interview at CP+ 2026 in Yokohama, Sigma CEO Kazuto Yamaki discusses the company’s recent explosive growth, their technical philosophy, and the surprising success of niche products. Here is a breakdown with the key takeaways. The full interview can be read at the French website Phototrend.