Slide scanner?
It's incredible how much contrast old slides have.
If you try to photograph them, you quickly reach your limits and are constantly adjusting the aperture.
I spontaneously had the idea that 13.5 f-stops of dynamic range would be better.
The same goes for filming Super 8.
Has anyone tried this with the Action 5?
I could imagine projecting onto clean white cardboard and filming slightly off-axis so that there is no white spot in the centre.
The slight parallax error could be corrected in post.
Of course, it could also happen that the image "pumps"; a frame could prevent this.
I personally don't have any experience with slide photography or have tried it with this camera. I would therefore recommend asking the question in our Community, as you can address a wider and larger audience:
The Digitec ForumAnother alternative, depending on the slide format, such slide scanners are a very good option:
Slide Scanner