Sigma USB Dock for Pentax Lenses Discontinued 4 maximum aperture benefits working

4 maximum aperture benefits working in difficult lighting conditions and also affords increased control over depth of field

Super Protect coating helps to protect the front lens element from dirt and finger marks

This lens is compatible with the optional Sigma USB Dock for fine-tuning different lens characteristics and updating its firmware

is a fast portrait-length lens offering impressive subject separation using an especially shallow depth of field

Sigma USB Dock for Pentax Lenses Discontinued 4 maximum aperture benefits workingThe Sigma USB Dock allows you to connect your Sigma Global Vision lenses to your computer in order to update firmware and adjust focus setting parameters using the Sigma Optimisation Pro software. This dock is only compatible with the Sigma Art, Contemporary, and Sports line lenses featuring a Pentax K lens mount. Sigma Optimisation Pro Once a Sigma Art, Contemporary, or Sports line lens is connected, you can use the Sigma Optimisation Pro software to