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 accuracy when the lens is attached with SIGMA MOUNT CONVERTER MC-11 SA-E.

Note: For customers who own SIGMA MOUNT CONVERTER MC-11 SA-E, it is necessary to update this to the latest firmware Ver1.02.

It has improved the AF accuracy of this lens when mounted on the SIGMA sd Quattro.

It has corrected the phenomenon that it shows some overexposure when it is attached with TELE CONVERTER TC-1401 on a Nikon D500.

It has improved the AF algorithm to further enhance AF speed.

The firmware will optimize the operation of Mode2 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 ensured compatibility with Canon’s in-camera Lens Aberration Correction function, which enables correction matching the optical characteristics of the attached lens. ^*
It has corrected the phenomenon that abnormal images appear or operation errors occur when Canon’s in-camera Lens Aberration Correction function is enabled.
It has improved the AF speed in certain combinations with some cameras.

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

It has improved the AF accuracy when the lens is attached with the SIGMA MOUNT CONVERTER MC-11 EF-E.

Note: For customers who own SIGMA MOUNT CONVERTER MC-11 EF-E, it is necessary to update this to the latest firmware Ver1.02.

It has reduced the operating sound of the lens diaphragm blades when attached with the SIGMA MOUNT CONVERTER MC-11 EF-E and used for shooting movies.
It has improved the AF accuracy when the lens is used for shooting movies as well as Live View on EOS DIGITAL SLR cameras.^*1
It has reduced the operating sound of the lens diaphragm blades when used for shooting movies on EOS DIGITAL SLR cameras.^*1
It is fully functional with the Canon Digital Cinema Camera EOS C300 Mark II.

*1 The degree of improvement differs depending on the camera used.

It has improved the AF algorithm to further enhance AF speed.

It has improved the AF accuracy when attached to the TELE CONVERTER TC-1401.

Note: Please refer to the camera’s instruction manual for information on AF operation when used with tele converters.
Note: This firmware update standardizes the data processing to improve AF accuracy and resets the focus adjustment values.