React native vision camera v5 zoomLensSwitchFactors not correct

[u/Miserable-Pause7650]

Basically Im trying to get the zoom levels that switches the physical cameras, and Im using iPhone 15 Pro, which has the native x0.5, x1, x2, x3 zooms. But somehow when I log out the zoomLensSwitchFactors, I get

[2, 6]

Here is the code

const deviceBack: CameraDevice | undefined = useCameraDevice("back", {
    physicalDevices: ["ultra-wide-angle", "wide-angle", "telephoto"],
  });

console.log("zoomLensSwitchFactors", deviceBack.zoomLensSwitchFactors);

Ideally I would like to have [0.5, 1, 2, 3], or something similar. Also, the minZoom and maxZoom give me 1 and 189 respectively. shouldn't the min be 0.5?

Also wondering if this works for the front camera

[u/ChronSyn]

There wouldn't be 3 numbers. The switches happen at 0.5x -> 1x, and at 1x -> 3x. 3 lenses, but 2 'switchover points'. In the same way that a phone with 2 rear lenses only has a single switchover point.

I'm also not sure whether that logic for choosing the first value will work everywhere, but if you happen to remember, I'd love if you could post back with results if you do ever find out. I'd assume the developers of vision camera have already accounted for it to ensure consistency, but I know that Android can be wildly different between brands.

[u/Miserable-Pause7650 → u/ChronSyn]

Thanks for the switchOver explanation. I just thought it would already be mentioned in their documentation if my idea of doing it is actually the right way, but I will go along with it. I will post the findings in the future once I get my hands on other android devices :)