Sigma has released new firmware for Canon mount versions of four of its lenses: 17-70mm F2. 8-4 DC Macro OS HSM | Contemporary Canon 18-200mm F3. 5-6. 3 DC Macro OS HSM | Contemporary Canon 18-300mm F3.
5-6. 3 DC MACRO OS HSM | Contemporary Canon
24-105mm F4 DG OS HSM | Art Canon
According to Sigma, the new firmware improves the AF accuracy of the lenses when used with the Sigma Mount Converter MC-11, as well as decreasing the lens diaphragm blades noise when using the aforementioned converter.
The same AF accuracy improvement and decreased noise also apply to the lenses when they are used with Canon EOS DSLRs while shooting video or while in Live Mode. Finally, Sigma says these lenses are now compatible with the Canon Digital Cinema Camera EOS C300 Mark II.
Sigma lens owners with the Sigma USB Dock must first update the Sigma Optimization Pro software to, at minimum, version 1. 4. 1 (Windows) or version 1. 4. 0 (Mac) before installing the new firmware.
The full Sigma changelog is below:
Benefits of this firmware update
It has improved the AF accuracy when the lens is attached with the SIGMA MOUNT CONVERTER MC-11.
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 video shooting.
It has improved the AF accuracy when the lens is used for video shooting as well as with Live View mode of EOS DIGITAL SLR cameras. *1
It has reduced the operating sound of the lens diaphragm blades when the lens is used for video shooting on EOS DIGITAL SLR cameras. *1
It has become compatible with the Canon Digital Cinema Camera EOS C300 Mark II.
*1 The degree of improvement may differ depending on the camera used.
Via: Sigma
. dpreview.com2017-5-18 20:49
