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 ...