Calibrating Sigma lenses using SIGMA Optimization Pro allows you to permanently correct front-focusing or back-focusing issues directly on the lens firmware. This process is primarily used for Sigma Global Vision lenses (Art, Contemporary, and Sports) designed for DSLR cameras, as mirrorless lenses (DN series) do not suffer from mechanical front/back focusing. Unlike camera-body micro-adjustments that shift the entire focus range globally, the SIGMA USB Dock and software allow you to fine-tune focus at multiple distinct focal lengths and shooting distances. 🛠️ Required Equipment AF Calibration of Sigma 50-100 with Sigma Optimization Pro
Leave a Reply