We have found that the SIGMA 17-70mm F2.8-4 DC MACRO HSM | Contemporary PENTAX does not function properly when the image stabilizing system on the camera body is used.
For those who own the lens, we are going to provide the firmware update free of charge.
Please note that all lenses shipped from our factory from now on will have the latest firmware.
We appreciate your continued support for our company and products.

[Product]
SIGMA 17-70mm F2.8-4 DC MACRO HSM | Contemporary PENTAX

[Phenomenon]
When the image stabilizing system on the camera body is used, the degree of image blur becomes bigger.

For those who own the SIGMA USB DOCK, it is possible to update the firmware through SIGMA Optimization Pro 1.2.

More details regarding the SIGMA USB DOCK is available by CLICKING HERE or contact the Sigma Imaging UK Service Department for assistance. 

Tel 01707 329999  Email service@sigma-imaging-uk.com

Sigma Imaging UK Support Website Click Here