Good point, although my post was a response to Kamkar's post, whatever specs Kamkar was quoting, right or wrong. I hadn't bothered to check what he was referring to, I was just pointing out what I think to be rather strange values.
Hopefully when Vueroid correct the specification, they will put the actual values in. And maybe the values are correct for the D21 anyway, maybe the D21 image is genuinely geometrically inaccurate, and maybe the new dashcam will be too.
Maybe
@Panzer Platform needs to measure vertical and horizontal field of view in addition to horizontal? The diagonal might be a challenge...