Sigma Addresses 17-70mm Shake Reduction Issue

Firmware update for the Pentax version

By PF Staff in Third-Party Announcements on Jan 24, 2015
Sigma Addresses 17-70mm Shake Reduction Issue

Sigma Japan has just released a statement addressing owners of the Pentax version of the 17-70mm F2.8-4 "Contemporary".

Earlier this month, our users discovered an issue in which this lens failed to properly report the current focal length to the camera.  This would lead to improper stabilization by the camera's Shake Reduction system and occasionally resulted in blurry images.

Today, Sigma has resolved the issue through a lens firmware update.  Sigma will update your lens's firmware at a warranty/service center free of charge, or you can install the firmware update at home via the Sigma USB dock.  New lenses that leave the factory will come pre-installed with the updated firmware.  Sigma is to be commended for its prompt attention to the problem.

If you own a USB dock, the Sigma Optimization Pro software should automatically check for the firmware update when you connect your lens.

Visit our in-depth review of the Sigma 17-70mm to learn more about this popular lens.

Official Statement

2015.01.23

Dear SIGMA 17-70mm F2.8-4 DC MACRO HSM | Contemporary PENTAX Users - Firmware Update of the Lens

Thank you for purchasing and using our products.
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 further information, please contact your nearest authorized subsidiary / distributor of SIGMA.
For those who own the SIGMA USB DOCK, it is possible to update the firmware through SIGMA Optimization Pro 1.2.

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