Can't open RW2 files from Panasonic TZ200

Apple's Support document is still listing the TZ200: Digital camera RAW formats supported by iOS 16, iPadOS 16, and macOS Ventura - Apple Support

Which version of Ventura do you have installed - "the latest" may not be the current version, if your Mac did not show the last update? Is there an update listed in the System Preferences?

The TZ200 is still appearing in the system report on my Mac.

You also neglected to mention you were working with jpeg+raw files. Your original post said you couldn't open RW2 files, not that you couldn't convert them.

I have no source of the files you are working with. However, you can send Apple feedback about the problem.

Feedback - Photos - Apple

With Ventura 13.3.1 (a) on an M2 Mac Mini Pro, I am not showing System Information > Raw Support for the LUMIX DMC-TZ200. My entries end with the TZ110, though support is shown for the FZ200, ZS200 and ZS220.

Apparently the TZ200 is also known as the ZS200 model, and the ZS200 RAW support may be the reason these TZ200 images are displaying in Finder, Quick Look, and Preview for me.

From this TZ200 Review:

Just to be clear, are you referring to the Panasonic LUMIX DC-TZ200, which has been around quite awhile, or a newer Panasonic with a similar name?

edit: just to add, I can open RW2 files from the DC-TZ200 in Ventura and Monterey,

Just for the record, I'm also using Ventura 13.3.1 (a), and the DC-TZ200 is listed in System information > Raw Support but not the DC-TZ200D. I wonder if this is part of the problem.

I tried to preview a RW2 file from the Panasonic Lumix DC-TZ200D and it wouldn't show. When imported into Apple Photos I get the same problem as you.

So, you can either wait for Apple Support of find a workaround (new camera or new software).

I think the best workaround is to install Adobe DNG Converter and convert from RW2 to DNG before you import into Apple Photos. That would mean copying from the card/camera to a new folder and running the converter, then dragging the DNG files into Apple Photos.

I thought Adobe Camera Bridge might help, but it only let's your browse/preview files and not edit them, so it's not a solution really.

Just want to let you know that I have the same problem. I can confirm that simply changing exif info like this:

❯ exiftool P1010038.RW2 | grep TZ
Camera Model Name               : DC-TZ200D
❯ exiftool P1010038.RW2 -model=DC-TZ200
    1 image files updated
❯ exiftool P1010038.RW2 | grep TZ
Camera Model Name               : DC-TZ200

makes apple photos.app recognize and edit perfectly the picture :(

I submitted feedback to Apple, but I'm not holding my breath honestly

With Ventura 13.3.1 (a) on an M2 Mac Mini Pro, I am not showing System Information > Raw Support for the LUMIX DMC-TZ200.

FWIW, there is no LUMIX DMC-TZ200.