Sigma USB Dock - Canon EF-M Mount Brand_Celestron A floating focus mechanism ensures

A floating focus mechanism ensures that consistently superior optical performance is achieved at all focusing distances

dynamic images created by young photographers from all over the world

Video recording is clean and smooth with highly minimized focus breathing and reduced wobbling

Perfect for Astro

120fps high-speed shooting of Full HD video can be used to create high-quality slow-motion footage in post-production

Sigma USB Dock - Canon EF-M Mount Brand_Celestron A floating focus mechanism ensuresBy connecting the USB cable to a computer, SIGMA USB DOCK enables photographers to update the lens firmware and adjust parameters such as focus. The adjustment is processed with special software (SIGMA Optimization Pro). The AF speed, focus limiter and OS function are also customizable for Sports lenses.