Make sure that you have the latest updates installed.
If your camera came out within the past 90 days and it’s not on the list of supported cameras, be patient, as you may need to wait for compatibility.
Adobe goes through a rigorous process of adding support for and testing of each new camera raw format. Adobe generally releases updates of the Adobe Camera Raw plug-in and the Lightroom to provide new camera support about once a quarter, or about every 90 days.
You do not have to buy a new version of Photoshop or Lightroom just to get the latest camera support.
Adobe provides backward compatibility for the latest cameras for free in Photoshop CS, CS2, CS3, CS4, CS5, and CS6 as well as Lightroom 1, 2, 3, 4, 5 and 6, through the Adobe DNG Converter. With this tool, you can easily convert camera-specific raw files from supported cameras to a more universal DNG raw file.
The difficulty with supporting Adobe Camera Raw plug-in updates for legacy versions of Photoshop and Lightroom is that camera manufacturers are creating new proprietary raw formats each time they come out with a new camera—and new cameras are coming out faster and in greater volume.
It’s untenable to keep updating previous versions of the Adobe Camera Raw plug-in and support new cameras/raw formats in a timely fashion.
Using the Adobe DNG Converter is the fastest way to deliver backward compatibility to all customers (CS1–CS6; Lightroom 1–6; Photoshop Elements 3–15 & 2018-2020); as well as third-party apps that support DNG).
Put simply, the Adobe DNG Converter allows Adobe to support the most possible customers and cameras.