Alignment / Fisheye help

[markwal]

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Camera Alignment

This is extremely correct. A very small vertical distance will create a very large horizontal offset in the preview. We’ve never seen this happen. Given the way the hardware works, I believe it’s unlikely - if it moves at all, it’s going to fall off. In manufacturing, ever part has a tolerance. Machine-to-machine variation is calibrated out at the factory, though. Indeed. It’s easy to obtain much larger or smaller values depending on the height error. (There are other sources of error…

I think the upshot is that since you have good horizontal lines you’re probably as close as it’s gonna get for now.