Sigma USB Dock - Canon EF-M Mount Resolution_46.7 megapixels bright maximum aperture means you

bright maximum aperture means you can shoot handheld in low-light conditions while still getting outstanding sharpness and clarity

5 threaded holes

The thumbscrew on each side features a hex spanner hole so that you can use the hex spanner to re-tighten it

fruits and flowers

along with a double CD insert

Sigma USB Dock - Canon EF-M Mount Resolution_46.7 megapixels bright maximum aperture means youBy 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.