This is to inform that the SIGMA Photo Pro 6.5.4 for Macintosh is not compatible with the Mac OS X 10.13 (High Sierra), which is newly released by Apple.
At the moment, we are working on the development of the SIGMA Photo Pro 6.5.5 for Macintosh. Once the compatible software becomes available, we are going to make further announcement.
For any inquiries, please contact your nearest authorized SIGMA subsidiary / distributor.
We appreciate your continued support for our company and products.