I perfer this method over a mirror and magnifying glass because the position of my head n body doesn’t matter to see the needles, I use it with the usb camera with my gen1 Prometheus

BJS,
I use a regular desk to reload, and if I had a dedicated reloading bench I don’t like the additional time and effort required by a high scale position when a lot of loads are being weighed. The mirror started being held in the left hand, then I read about the fellow who mounted a magnifier, and thought that I might be able to rig up something that gave me both desk top parallax relief, and a little magnification, the latter because I believe that a tuned up balance requires close attention to see the small differences that are there to be read, but so small in measurement at the end of the pointer that they can easily be overlooked.