I recently bought an PowerShot G1X MKII and always work with raw images. I have CS5 which does not support those raw images. Before upgrading to CS6 I wonder if anybody has experience with opening PowerShot G1X MKII raw images using ACR in CS6.
I just checked the supported camera list published by Adobe. It indicates that there is preliminary support for that camera in the latest version of Camera Raw. That version will not be compatible with Photoshop CS5. But you could download the DNG converter version 8.4 and convert those raw files to the DNG format and use them with what you already have. You could purchase Photoshop CS6 and install Camera Raw 8.4 and have support for your camera, albeit preliminary support. But new features that have been added to Camera Raw since the introduction of Photoshop CC will not be available to you. But since you don't have those features now that probably wouldn't matter. You could also add Lightroom to your workflow, turning to Photoshop CS5 when needed. Here is a link to the Adobe webpage that lists camera support:
Thanks Jim and sorry for late reply. I bought CS6 and it is working perfectly in combination with the RAW images of the PowerShot G1X MKII.