The reason there are two people with the same face is that the photo has two images on the same exposure.

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The reason there are two people with the same face is that the photo has two images on the same exposure.

That's pretty neat, what adapter is that?
Its just a beam splitter thing I 3D printed. I've been trying to sell my prototypes on eBay but no one wants to pay $25 bucks for some mirrors and countless hours wasted designing :)
There's a community called crosseyedview where I posted samples. I'm mid projects but I'll keep posting some more there.
Cool stuff. I'm not a photographer but some of the effects in that community are really interesting.
That metadata is written into the photo by the camera, so Immich may not be able to accommodate this easily. Not sure about Canon specifically, but my Nikon cameras have a memory bank for manual focus lenses. Might be worth checking through your menus.
They suggested tags. It sort of works.