Sigma USB Dock for Pentax Lenses Discontinued The lens has markings on

The lens has markings on both sides of the barrel

while Sony's original Nano AR coating suppresses any unwanted reflections

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

and the finder can also be configured to display a range of other shooting aids

Sigma USB Dock for Pentax Lenses Discontinued The lens has markings onThe 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