Sigma offers part replacement to prevent lenses scratching Pentax K-1
Lens manufacturer Sigma has announced that it will replace parts on its Pentax-mount lenses that are known to scratch the new Pentax K-1 full-frame camera. The company says that certain lenses that it produces clash with the shape of the upper part of the mount on the K-1 and that using one of the listed lenses ‘could leave a small scratch on part of the camera body’.
Sigma has issued a list of current and past lenses that it knows create a problem, and advises Pentax K-1 owners not to use them until the repair is carried out. Three current lenses are included in the advisory: the 30mm F1.4 DC HSM Art, 35mm F1.4 DG HSM Art and APO 50-500mm F4.5-6.3 DG OS HSM. A time scale for the repair service to begin has yet to be announced though.
The company also says that some of its lenses are not recognized automatically by the K-1, and that users will need to manually enter whether the lens is designed for full frame or APS-C sensors via the camera’s menu system. The announcement makes no mention of whether this issue will also be fixed.
Use of Pentax mount SIGMA interchangeable lenses when attached to the Pentax K-1
Thank you for purchasing and using our products.
We have found that some SIGMA interchangeable lenses for Pentax mount could leave a small scratch on part of the camera body when they are attached to the PENTAX K-1, released by RICOH IMAGING COMPANY, LTD. on April 28th, 2016. In this circumstance, please do not use the following lenses for Pentax mount on the PENTAX K-1.
We are planning to provide a repair service to replace a part of the lens for this issue. We will make a further announcement on our website when specific details, such as the service period, are finalized.
In addition, please also refer to the usage notice related to this announcement below.
When some SIGMA interchangeable lenses for Pentax mount are attached to the PENTAX K-1, the upper part of the mount can be scratched.
This phenomenon is due to the interference with the shape of the upper part of the mount on the PENTAX K-1 camera body and it does not occur to any cameras other than PENTAX K-1.
- 30mm F1.4 DC HSM| Art
- 35mm F1.4 DG HSM| Art
- APO 50-500mm F4.5-6.3 DG OS HSM
- 50mm F1.4 EX DG HSM
- 85mm F1.4 EX DG HSM
- 24-70mm F2.8 IF EX DG HSM
- APO 70-200mm F2.8 EX DG OS HSM
- APO 70-200mm F2.8 II EX DG MACRO HSM
- APO 50-150mm F2.8 II EX DC HSM
- APO 120-400mm F4.5-5.6 DG OS HSM
- APO 150-500mm F5-6.3 DG OS HSM
Usage Notice for customers who are using Pentax mount SIGMA lenses on a PENTAX K-1
In some cases, depending on the lenses to be attached on the camera, the angle-of-view cannot be recognized automatically. Please select an angle-of-view that is appropriate for the lenses to be attached from “Crop” in the camera’s menu.
When DG lenses are attached, please select “FF”.
When DC lenses are attached, please select “APS-C”.
We appreciate your continued support for our company and products.
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