It has improved the stability of the image in the viewfinder, making it easier to confirm composition, thanks to the updated control algorithm of the Optical Stabilizer.
It has improved the AF speed and quality when the lens is used with the SIGMA MOUNT CONVERTER MC-21 SA-L.

It has corrected the phenomenon that the Manual Override (MO) function will be disabled after adjusting the settings of focus mode switch on SIGMA Optimization Pro (Macintosh ver.).

It has improved the AF performance.
When attached to the SIGMA MOUNT CONVERTER MC-11 SA-E (ver. 1.05), it offers not only improved AF performance, but also enables the OS mechanism to start operating faster than before.

It has corrected the phenomenon that the Manual Override (MO) function will be disabled after adjusting the settings of focus mode switch on SIGMA Optimization Pro (Macintosh ver.).

It has improved the AF performance.

It has optimized the operation of Mode 2 in Optical Stabilizer when used in combination with the SIGMA MOUNT CONVERTER MC-21 EF-L.

It has improved the stability of the image in the viewfinder, making it easier to confirm composition, thanks to the updated control algorithm of the Optical Stabilizer.

It has corrected the phenomenon whereby restarting the camera does not work when the lens is taken off the camera while the lens’s OS function is in operation.
It has corrected the phenomenon whereby it may stop the focus driving from infinity to closer focus distance while shooting video with AF.

It has improved the AF speed in certain combinations with some cameras.

It has corrected the phenomenon whereby the AF speed occasionally becomes unstable.

It has corrected the phenomenon that the continuous shooting speed of some SIGMA interchangeable lenses with firmware Ver.2.00 decreases in certain combinations with some cameras.

It ensures compatibility with Canon’s in-camera Lens Aberration Correction function, which enables correction matching the optical characteristics of the attached lens.^*
It corrects the phenomenon that abnormal images appear or operation errors occur when Canon’s in-camera Lens Aberration Correction function is enabled.
It corrects the phenomenon that exposure during shooting through the viewfinder or Live View mode becomes unstable.

*Compatible cameras: EOS 1D X mark II, EOS 5Ds, EOS 5Ds R, EOS 5D mark IV, EOS 6D mark II, EOS 8000D(EOS Rebel T6s, EOS 760D), EOS 80D, EOS 9000D(EOS 77D), EOS Kiss x9i(EOS Rebel T7i, EOS 800D), EOS Kiss x9(EOS Rebel SL2, EOS 200D), EOS Kiss x8i(EOS Rebel T6i, EOS 750D)

It has corrected the phenomenon that the Manual Override (MO) function will be disabled after adjusting the settings of focus mode switch on SIGMA Optimization Pro (Macintosh ver.).

It has corrected the phenomenon that the OS mechanism does not operate properly when attached to the SIGMA MOUNT CONVERTER MC-11 EF-E.

It has improved the AF performance.
When attached to the SIGMA MOUNT CONVERTER MC-11 EF-E (ver. 1.06), it offers not only the improved AF performance, but also enables the OS mechanism to start operating faster than before.