Quote:
I just take off my glasses and squint. If I can't see it, I take a photo of it then zoom it in on my computer.
This basically.
My vision is -8 or so in the European system... no idea what it comes to in the American system, but essentially "pretty darn nearsighted".
More than one dealer over the years was surprised that I could see anything on some tiny coin without any visible magnification tools (typically it was either a Roman AE4 or a Russian "fishscale" wire kopek).